2026 Chevrolet Silverado 1500 RST

  • New
$54,305MSRP
$48,294Today's Price
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WILSONVILLE CHEVROLET
Location Details
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    The overview

    Exterior Color
    Sterling Gray Metallic
    Interior Color
    Jet Black, Cloth seat trim
    Fuel Economy
    17/21 MPG City/Hwy
    Transmission
    Automatic
    Drivetrain
    4WD
    Engine
    TurboMax™ engine
    VIN
    1GCPKWEK8TZ415489
    Stock Number
    60523
    Trim
    RST
    Model
    Silverado 1500
    Body Style
    Truck

      Included Dealer Accessories, Add-ons and Upfits

      • Documentation Fee and Electronic Filing Fee - Documentation Fee and Electronic Filing Fee Disclosure - Documentation Fee and Electronic Filing Fee$250
      • Basic: 3 Years/36,000 Miles
      • Corrosion: 3 Years/36,000 Miles, Rust-Through, 6 Years/100,000 Miles
      • Drivetrain: 5 Years/60,000 Miles, Silverado TurboMaxTM engines, 3.0L & 6.6L Duramax® Turbo-Diesel engines, and certain commercial, government, and qualified fleet vehicles: 5 years/100,000 miles
      • Maintenance: First Visit: 12 Months/12,000 Miles
      • Roadside Assistance: 5 Years/60,000 Miles, Silverado TurboMaxTM engines, 3.0L & 6.6L Duramax® Turbo-Diesel engines, and certain commercial, government, and qualified fleet vehicles: 5 years/100,000 miles
      • Warranty: <<< Preliminary 2026 Warranty >>>
      • Max seating capacity: 6
      • Fuel System: Direct Injection
      • Fuel tank capacity: 24 gal
      • Horsepower: 310
      • Towing capacity: 9000 lbs
      • 13.4" diagonal Chevrolet Infotainment 3 Premium System with Google built-in:
        • 13.4" diagonal Chevrolet Infotainment 3 Premium System with Google built-in, includes multi-touch display, AM/FM/SiriusXM1 radio capable
        • Bluetooth®2 streaming audio for music and select phones
        • Wireless Apple CarPlay™ capability for compatible phones3
        • Wireless Android Auto™ capability for compatible phones4
        • Customize and manage entertainment and vehicle feature settings through the 13.4" diagonal touch-screen display
        • Use, control and manage select smartphone apps through the Infotainment system
        • Voice-activated technology for phone
      • 6-speaker audio system:
        • Speakers are positioned throughout the cabin for outstanding sound quality and an enjoyable listening experience
      • Bluetooth®:
        • Pair your compatible mobile phone to your vehicle's infotainment system1
        • Place and receive hands-free phone calls
        • Store your phone's contact list in the system to place an outgoing call quickly using the touch-screen display or voice command system
        • With streaming audio capability, you can listen to files stored on your phone or Bluetooth digital media device
      • SiriusXM with 360L Trial Subscription:
        • With your trial subscription, new GM vehicles equipped with SiriusXM with 360L advance in-car technology will bring you closer to your favorite stars, artists, creators, hosts and athletes1
        • SiriusXM with 360L transforms your ride with our most extensive and personalized radio experience on the road that lets you enjoy ad-free music, talk and news, live sports, comedy, podcasts and more
        • Experience SiriusXM wherever you go in your vehicle and on the SiriusXM app with personalization features to make discovering your perfect entertainment easier than ever before
      • Wi-Fi® Hotspot capable:
        • Terms and limitations apply. See onstar.com or dealer for details.
        • May require additional optional equipment
      • Wireless Apple CarPlay/Wireless Android Auto capability for compatible phones:
        • Apple CarPlay vehicle user interface is a product of Apple and its terms and privacy statements apply. Requires compatible iPhone and data plan rates apply. Apple CarPlay is a trademark of Apple Inc. Siri, iPhone and Apple Music are trademarks for Apple Inc, registered in the U.S. and other countries.
        • Vehicle user interface is a product of Google and its terms and privacy statements apply. To use Android Auto on your car display, you'll need an Android phone running Android 6 or higher, an active data plan, and the Android Auto app. Google, Android and Android Auto are trademarks of Google LLC.
        • May require additional optional equipment
      • 17" 255/80R17SL all-season, blackwall spare tire:
        • May require additional optional equipment
      • 17" full-size spare steel wheel with Black finish:
        • May require additional optional equipment
      • 20" 275/60R20SL all-terrain, blackwall tires
      • 20" High gloss Black painted aluminum wheels:
        • May require additional optional equipment
      • 4" Black round assist steps:
        • Steps make it easier to get in and out of your truck
        • Textured step pads help provide secure footing
        • Black powder-coat finish
        • May require additional optional equipment
      • Body-color door handles:
        • Body-color on LT and RST models
        • High gloss Black on LT Trail Boss and ZR2 models
      • Body-color front bumper:
        • Body-color on Custom, RST and High Country models
        • High gloss Black on Custom Trail Boss, LT Trail Boss and ZR2 models
      • Body-color rear bumper:
        • With integrated CornerSteps
        • Body-color on Custom, RST and High Country models
        • High gloss Black on Custom Trail Boss, LT Trail Boss and ZR2 models
      • Cab-mounted cargo area lamps:
        • With switch in switch bank left of the steering wheel
        • Illuminates the cargo bed area
        • LED lighting on Crew Cab and Double Cab models, incandescent on Regular Cab models
      • Cargo bed LED lighting:
        • Provides light to find cargo in the bed
        • Rear pillar lamps
      • Cargo tie-downs:
        • 12-fixed rated at 500 lbs. per corner
      • Chevytec spray-on bedliner:
        • Provides a Black, textured, non-skid surface that helps protect the bed and minimizes cargo shifting
        • Covers the bed interior surface below side rails, front bed top rail, gauge hole plugs and tie-downs
        • Chemically bonded, the sprayed-on liner permanently bonds to the truck bed, providing a watertight seal
        • Includes Chevrolet logo
        • High Country models include High Country logo
        • May require additional optional equipment
      • CornerStep rear bumper:
        • Helps make it easier to get into and out of the pickup bed
        • Located at each end of the rear bumper
        • Textured step pads to help provide secure footing
      • Deep-tinted glass:
        • Provides added protection from sun and glare
        • May require additional optional equipment
      • Front license plate bracket:
        • Front bracket is included if displaying a front license plate is required in your state
      • Heated power outside mirrors:
        • Power adjustable, manual folding
        • May require additional optional equipment
      • IntelliBeam:
        • At speeds above 25 mph, can automatically turn vehicle's high beams on and off according to surrounding traffic conditions1
      • LED fog lamps:
        • Help minimize glare in adverse driving conditions
      • LED tail lamps:
        • LED taillamps with LED stop lights and animation
        • Incandescent reverse light
      • Painted mirror caps:
        • High gloss Black on RST, LT Trail Boss and ZR2
        • Body-color on High Country
        • May require additional optional equipment
      • Spare tire carrier lock:
        • Helps keep spare tire secure
        • Utilizes the same key as the door and ignition
      • Standard tailgate
      • Tailgate and bed rail protection caps
      • Tailgate with EZ Lift assist, power lock & release:
        • Hitch area lighting
        • May require additional optional equipment
      • 10-way power driver seat with power lumbar:
        • Moves the seat forward and back, and up and down
        • Tilt the seat cushion and seatbacks
      • 12.3" diagonal color Driver Information Center:
        • Includes driver personalization, warning messages and vehicle information
        • Allows drivers to personalize vehicle features, including warning messages and vehicle information
      • 120-volt box-mounted power outlet:
        • 3-prong auxiliary household-style outlet
        • Located in the pickup bed
        • May require additional optional equipment
      • 120-volt power outlet:
        • 3-prong auxiliary household-style outlet
        • Located on the instrument panel
        • Makes it convenient for powering laptops, phone chargers and other electronic devices
        • May require additional optional equipment
      • 4-way manual front passenger seat:
        • Can be positioned forward or back and up or down
      • 40/20/40 split-bench front seat with under-seat storage:
        • Seating for up to 3
        • Driver and front passenger seatbacks recline
        • Head restraints at the outboard seating positions
        • Center seatback that doubles as a fold-down armrest with storage
      • 60/40 split-folding rear bench seat:
        • Includes child seat top tether anchor
        • Can fold one or both sides up
      • Assist handles:
        • Front A-pillar mounted for Driver and Passenger
        • Rear B-pillar mounted
      • Carpeted floor covering:
        • Color-keyed to match the interior
      • Compass:
        • Located in instrument cluster
        • May require additional optional equipment
      • Cruise control:
        • Maintains a selected speed while driving
        • Automatically disengages when the vehicle's traction control system needs to limit wheelspin on slippery surfaces or when the StabiliTrak® stability control system detects an oncoming skid
        • Set and resume speed functions
        • Steering-wheel mounted controls to easily maintain and manage cruising speed
        • May require additional optional equipment
      • Dual-zone automatic climate control:
        • Automatically maintains the selected temperatures for both the driver and front passenger
        • Allows individual climate settings for both driver and front passenger
        • Driver and front passenger can choose a temperature up to 30 degrees difference
      • Front and rear all-weather floor liners:
        • Include Brand logo
        • Feature a textured, anti-slip pattern that traps debris and water while providing optimum carpet coverage
        • Provides coverage for front and rear
        • Regular Cab includes front liners only
        • Replaces factory floor mats
        • May require additional optional equipment
      • Front rubberized-vinyl floor mats:
        • Helps protect your interior from road debris and the elements
        • May require additional optional equipment
      • Heated driver and front outboard passenger seats:
        • Separate buttons on the climate control panel allow you to choose from 3 levels of warmth
        • At the touch of a button you can warm the cushions and seatbacks with multilevel temperature control
        • Individually controlled
        • Seats can be programmed to automatically warm up when it's cold out
      • Heated steering wheel:
        • With the press of a button the steering wheel quickly heats up to provide additional comfort on a cold day
        • Certain vehicles will not be equipped with Heated Steering Wheel. Vehicles will be eligible for later dealer retrofit to enable functionality. Contact a dealer for details or check the window label for the features on a specific vehicle
      • Inside rearview manual day/night mirror:
        • Adjust the tilt of the mirror to help reduce glare during nighttime driving
      • Keyless Open and Start:
        • With the Keyless Entry fob in your possession, conveniently locks and unlocks your car's doors without having to use the key fob
        • With the vehicle in Park or Neutral, press the brake pedal and then press the engine start/stop button to start the engine; the green indicator on the button will illuminate
        • Shift to Park and press the engine start/stop button to turn off the engine
      • Manual tilt and telescoping steering column:
        • Allows the driver to adjust the steering wheel up or down, and the steering column forward or back
      • Outside temperature display:
        • Located in infotainment display
      • Power door locks:
        • Programmable
        • Allows you to lock and unlock doors easily whether it's from the driver or front passenger seat or from outside using the key fob
      • Power windows:
        • Driver with express-up/down
      • Power windows:
        • Front passenger with express down
        • May require additional optional equipment
      • Power windows with rear express-down
      • Rear air vents:
        • Provides cabin comfort for rear occupants
      • Rear rubberized-vinyl floor mats:
        • Helps protect your interior from road debris and the elements
        • May require additional optional equipment
      • Rear window defogger:
        • Helps to keep your rear view clear of fog or frost
        • Utilizes a warming grid to help remove fog or frost from the rear window
        • May require additional optional equipment
      • Remote Start:
        • Start your vehicle remotely and step into a comfortably warmed or cooled vehicle, depending on the weather and your preset preferences
        • Locks doors and turns on parking lamps while the engine is running
        • Activates the climate control system
      • Steering column lock:
        • Most vehicles built on or after 4-4-2022 are not equipped with Steering Column Lock. Contact a dealer for details on a specific vehicle
      • Steering-wheel mounted controls:
        • Allow the driver to easily operate the audio system and phone interface controls
      • Theft-deterrent unauthorized entry system:
        • Sounds the horn and flashes the turn signals when someone attempts to open the vehicle without the proper key or remote transmitter
        • Helps deter unauthorized entry, helping to protect your vehicle
      • Wrapped steering wheel
      • 220-amp alternator:
        • May require additional optional equipment
      • 3.42 rear axle ratio:
        • May require additional optional equipment
      • 4-wheel antilock disc brakes:
        • Help reduce wheel lockup and maintain steering control during hard braking on most slippery surfaces
        • Duralife brake rotors have better resistance to corrosion to increase rotor life, minimize brake pulsation, and improve aesthetic appearance
        • Brake system features a corrosion-fighting process called "Ferritic Nitro Carburizing" which can double rotor life expectancy and reduce or minimize rust
      • 7,000 lbs. GVWR:
        • When properly equipped; includes weight of vehicle, passengers, cargo and equipment
        • May require additional optional equipment
      • 8-speed automatic transmission:
        • Electronically controlled with overdrive
        • Tow/Haul mode
          • Raises transmission upshift points to provide more power to accelerate with a trailer or heavy load
          • Raises downshift points to use engine compression to help slow the truck instead of merely braking
        • Powertrain Grade Braking
          • Automatically uses the engine and transmission to slow the truck to maintain desired speeds when driving downhill
          • Reduces brake wear and increases vehicle control
        • Cruise Grade Braking
          • Downshifts automatically to slow the truck as it drives downhill if it exceeds the cruise set speed by a certain amount
      • Automatic Stop/Start:
        • At complete stops, when drivers keep their foot on the brake pedal, and under certain conditions, the engine shuts off
        • When drivers remove their foot from the brake, the engine automatically restarts
        • Under certain circumstances, the engine will not shut off at a complete stop
      • Automatic locking rear differential:
        • When the differential senses a significant difference in wheel speed, it locks to turn both rear wheels in unison for added traction
        • The Eaton® Locker senses a difference in wheel speed of approximately 100 rpm
        • May require additional optional equipment
      • Brake pad wear indicator
      • Capless fuel fill:
        • Prevents paint scratches that can result from a tethered fuel cap
        • Creates a tight seal around the fuel-pump nozzle when the nozzle is fully inserted
      • Durabed:
        • Roll-formed high-strength steel
      • Electric Power Steering:
        • Electric, rack-mounted with variable assist
        • Increases or decreases the amount of assist depending on the steering wheel angle
        • The system delivers great on-center precision and confident performance at higher speeds
        • Steering assist is greater during low-speed maneuvers, such as parking
      • Fully boxed frame:
        • Hydroformed front section
        • High-strength steel
      • Heavy-duty 730 cold-cranking amps battery:
        • 80 Amp-hr
        • Maintenance-free with rundown protection and retained accessory power
      • High-Capacity Suspension Package:
        • May require additional optional equipment
      • Integrated trailer brake controller:
        • Integrated with the antilock brake system (ABS)
        • Helps provide measured brake force signaling to electric-controlled trailer brake systems
        • Trailer gain and output are displayed in the Driver Information Center
        • May require additional optional equipment
      • Push Button Start
      • Single-outlet exhaust:
        • Aluminized stainless-steel muffler and tailpipe
      • Single-speed Autotrac Transfer Case:
        • 3 Transfer Case modes
        • 2WD HI mode
          • Vehicle operates in 2-wheel drive
          • In this mode the transfer case & front driveline hardware are disengaged to improve fuel economy
          • Suitable for routine driving on all road surfaces
        • 4WD Auto mode
          • 4WD Auto enables the transfer-case to provide the performance benefits of a full time active AWD system
          • The 4WD Auto controls automatically adjust torque in response to parameters such as driver inputs, wheel slip control, vehicle dynamic state (understeer/oversteer)
          • Ideal for wet or wintry conditions, but can be used on any road surface. Suitable for light off road usage
        • 4WD HI mode
          • Transfer case engages front driveline and power is transferred to both the front & rear axles
          • In 4WD HI the transfer case clutch maintains higher preemptive torque levels for increased traction vs 4WD Auto
          • Suitable for use on slippery road surfaces or off-road conditions such as deep sand, snow or rough terrain
        • Terrain mode
          • 4WD HI and provides improved low speed traction and vehicle control during off road driving
      • TurboMax™ engine:
        • 310 hp [231 kW] @ 5600 rpm
        • 430 lb-ft of torque [583 Nm] @ 3000 rpm
        • Paired with an 8-speed automatic transmission
      • All Star Edition
      • Chevy Safety Assist:
        • Automatic Emergency Braking1
        • Forward Collision Alert1
        • Front Pedestrian Braking1
        • Following Distance Indicator1
        • Lane Keep Assist with Lane Departure Warning1
        • IntelliBeam
      • Convenience Package:
        • Dual-zone automatic climate control
        • 10-way power driver seat adjuster
        • Heated driver and front passenger seats
        • Leather-wrapped steering wheel
        • Heated steering wheel
        • Manual tilt/telescoping steering column
        • 120-volt power outlet
        • 120-volt bed mounted power outlet
        • 2 charge-only USB ports1 for second row
        • Rear-window defogger
        • Keyless Open and Start
        • Remote Start
        • Content theft alarm
      • RST Select Package:
        • Package discount of $5,000
        • 20" high gloss Black painted aluminum wheels
        • 275/60R20SL all-terrain blackwall tires
        • Chevytec spray-on bedliner
        • 4" Black round assist steps
        • All-weather floor liners
        • May require additional optional equipment
      • Trailering Package:
        • Trailer hitch1
        • Trailering hitch platform
        • Includes a 2" receiver hitch, 4-pin and 7-pin connectors
        • 7-wire electrical harness and 7-pin sealed connector for connecting your trailer's lights and brakes to your vehicle
        • Hitch Guidance2
        • May require additional optional equipment
      • Daytime Running Lamps:
        • Includes automatic exterior lamp control
      • 6 airbags:
        • Dual-stage frontal airbags for driver and front outboard passenger1
        • Seat-mounted side-impact airbags for driver and front outboard passenger1
        • Head-curtain airbags for outboard seating positions1
        • Includes front outboard Passenger Sensing System for frontal outboard passenger airbag and illuminates a status light that indicates whether the airbag is on or off1
      • Buckle to Drive:
        • Helps remind the driver to buckle their seat belt before driving by preventing the vehicle from being shifted out of PARK temporarily when the driver's seat belt is not buckled
        • The feature also reminds the front passenger to buckle up, if equipped
      • Following Distance Indicator:
        • Displays the following time in seconds between your vehicle and a detected vehicle in front of you1
        • Designed to help you maintain a safe following distance
      • Forward Collision Alert:
        • Warns you if it detects a potential collision with a detected vehicle you're following so you can take action1
        • Can also provide a tailgating alert if you're following a vehicle much too closely
      • HD Rear Vision Camera:
        • Shows high-resolution digital image of area directly behind your vehicle while in Reverse1
        • Can help you park or avoid vehicles and objects
        • You can also display an overlay of where your vehicle is heading
        • Tailgate must be in the raised position for the HD Rear Vision Camera to operate properly
      • Hitch Guidance:
        • When in Reverse, displays a centered guideline on the Rear Vision Camera view1
        • Can help you line up the hitch to your trailer
        • When driving, lets you check the trailer using Rear Vision Camera view
        • May require additional optional equipment
      • Lane Keep Assist with Lane Departure Warning:
        • Uses a brief steering wheel turn to alert you when it detects you are unintentionally drifting out of your lane lines1
        • System alerts do not occur if you're using your turn signal, or it detects you may be intentionally leaving your lane
        • You may receive additional Lane Departure Warning alerts if needed
      • OnStar Basics:
        • Drive confidently with core OnStar services including1
          • Remote commands
          • Built-in voice assistance
          • Real-time traffic and navigation
          • Automatic Crash Response to help if you're in need
      • OnStar® services capable:
        • See onstar.com for details and limitations. Services vary by model. Service plan required.
      • Rear Seat Belt Indicator warning
      • Rear Seat Reminder:
        • Helps to remind the driver to check the back seat(s) before leaving the vehicle1
        • Activates when rear doors are opened and closed up to 10 minutes before or anytime while your vehicle is on
        • Under certain conditions, once the vehicle is switched off, designed to sound audible chimes and display a visual message within the driver display
        • Activates only once each time the vehicle is turned on and off, and would require re-activation on a second trip
      • Teen Driver:
        • Helps encourage safe driving habits for teens by providing an in-vehicle report card1
        • Activates certain safety systems, if equipped, when a Teen Driver-designated key fob is used
        • Mutes the radio until the front-seat occupants fasten their seat belts
      • Tire Pressure Monitoring System with Tire Fill Alert:
        • Monitors the pressure in each tire and alerts you if there is a low-pressure condition in one or more of the tires1
        • Provides visual and audible alerts outside the vehicle when inflating an under inflated tire to the recommended tire pressure
        • Properly inflate tires to help optimize your vehicle's ride, handling and efficiency
      • Automatic Emergency Braking:
        • Can help you avoid or reduce the severity of a collision with a detected vehicle you're following using camera technology1
        • Can automatically provide hard emergency braking or enhance your hard braking
        • Works at speeds between 5 and 50 mph
      • Front Pedestrian Braking:
        • At speeds between 5 and 50 mph, can help you avoid or reduce the severity of a collision with a pedestrian it detects directly in front of you1
        • Provides pedestrian alerts and can automatically provide hard emergency braking or enhance driver's hard braking
        • Limited nighttime and low visibility performance
      • StabiliTrak, electronic stability control system with traction control:
        • Automatically helps enhance control, particularly during emergency maneuvers, by adjusting the brakes and engine torque to help you stay on your intended path
        • Activates when vehicle sensors detect a difference between the driver's intended path and the direction the vehicle is actually travelling
        • Includes Traction Control that detects wheel slippage and applies brake pressure and/or reduces engine power to help the driver maintain control when accelerating on wet or snow-covered roads
        • Includes Brake Assist that senses how hard and fast a driver hits the brake pedal and gives extra braking assistance, if required
        • Includes Trailer Sway Control
        • Hill Start Assist
      Sterling Gray Metallic 2026 Chevrolet Silverado 1500 RST 4WD 8-Speed Automatic 2.7L I4 Turbocharged DOHC 8-Speed Automatic, 4WD, Black Cloth, 10-Way Power Driver Seat with Lumbar, 12.3 Multicolor Reconfigurable Digital Display, 120-Volt Bed Mounted Power Outlet, 120-Volt Interior Power Outlet, 4 Black Round Assist Steps, 40/20/40 Front Split-Bench Seat, 6-Speaker Audio System, All-Star Edition, All-Weather Floor Liner, Apple CarPlay/Android Auto, Auto-Locking Rear Differential, Bluetooth® For Phone, Chevytec Spray-on Black Bedliner, Cloth Seat Trim, Color-Keyed Carpeting Floor Covering, Convenience Package, Deep-Tinted Glass, Dual Rear USB Ports (charge Only), Dual-Zone Automatic Climate Control, Electric Rear-Window Defogger, Electronic Cruise Control, EZ Lift Power Lock and Release Tailgate, Front Frame-Mounted Black Recovery Hooks, Front LED Fog Lamps, Front Rubberized Vinyl Floor Mats, HD Rear Vision Camera, Heated Driver and Front Outboard Passenger Seats, Heated Power-Adjustable Outside Mirrors, Heated Steering Wheel, High Capacity Suspension Package, High Gloss Black Mirror Caps, Hitch Guidance, Inside Rearview Mirror with Tilt, Integrated Trailer Brake Controller, Keyless Open and Start, LED Cargo Area Lighting, Manual Tilt/Telescoping Steering Column, OnStar Services Capable, Power Front Windows with Driver Express Up/Down, Power Front Windows with Passenger Express Down, Power Rear Windows with Express Down, Preferred Equipment Group 1SP, Rear 60/40 Folding Bench Seat (folds Up), Rear Rubberized-Vinyl Floor Mats, Remote Vehicle Starter System, RST Select Package, SiriusXM with 360L Trial Subscription, Standard Tailgate, Steering Wheel Audio Controls, Teen Driver, Theft Deterrent System (unauthorized Entry), Tire Pressure Monitoring System, Trailering Package, Wheels: 20 x 9 High Gloss Black Painted Aluminum, Wi-Fi Hot Spot Capable, Wrapped Steering Wheel.

      Recent Arrival!


      Wilsonville Chevrolet is a General Motors Standard for Excellence Winner. Only dealers with the highest level of Customer Satisfaction qualify for this prestigious award. With 4.5 acres of New, Certified and Pre-Owned inventory we offer a great selection of vehicles to choose from. In addition we have a new vehicle locating service. So in the rare event that we don’t have what you are looking for we can locate the exact new Chevrolet that meets your needs. Verify pricing and rebate(s) availability on all new cars at www.wilsonvillechevrolet.com or contact the Dealership at 503-454-2000.

        Tax, title, license and dealer fees (unless itemized above) are extra. Not available with special finance or lease offers.MPG estimates on this website are EPA estimates; your actual mileage may vary. For used vehicles, MPG estimates are EPA estimates for the vehicle when it was new. The EPA periodically modifies its MPG calculation methodology; all MPG estimates are based on the methodology in effect when the vehicles were new (please see the “Fuel Economy” portion of the EPA’s website for details, including a MPG recalculation tool).