Speedometer Calculation

Asked by Nov 03, 2014 at 04:04 PM about the 2011 Chevrolet Silverado 1500 LT Crew Cab 4WD

Question type: General

I had 265/70/18 tires installed on my 2011 Silverado 1500 4wd. I think the speedometer is
off now. Is there an easy DIY solution? Thanks in advance. The factory tires were
265/65/18.

4 Answers

10,625

You can use this conversion table to calibrate your speedometer: http://tire-size-conversion.com/speedometer-calibration/ OR you you can reprogram the ECU to make the MPH correct on the gauge with a tool like this: http://www.hypertech-inc.com/products-speedometer-calibrator.aspx

1 out of 1 people think this is helpful.
10,625

After entering your tire sizes, you're only about 2 mph off (slower) on the MPH gauge than the stock tires. Not much to worry about unless you want to get the speedometer dead accurate. Going from a 70 to a 65 series is not a huge jump so it's not that far off.

1 out of 1 people think this is helpful.

When I calculated it from http://tire-size-conversion.com/speedometer- calibration it says + 2 mph not - 2 still not a major difference, but you stated (slower).

10,625

Ahhh.. Sorry about that. Yes you are correct. My mistake. Smaller tires = faster speedometer. Thanks for the correction.

Your Answer

Add photo

Related Questions

  • Tire size 1 answer

    I just purchased a 2015 Silverado crew cab LT 2wd. Stock tire and wheel 255 70 17. I want to go with a 20 inch wheel and an all terrain tire. I don't want to do a leveling kit. Would a 275 55 20 ti...

    2015 Chevrolet Silverado 1500 LT

    -

    General

  • When towing 1000 lbs I drop 8mpg. is thois normal? 8 answers

    I have a 2015 1500 5.3L 4x4 Silverado. I'm towing a 14x6 (15" tires single axel) utility trailer (200lbs) with an ATV loaded (600lbs) and I'm dropping in MPG from 19.3 to 11. Is this normal?

    2015 Chevrolet Silverado 1500 LT 4WD

    -

    General

  • 92 chevy k1500 stepside camshaft help 8 answers

    im about to purchase a 92 stepside for myself, we used to have one with only a few things done to it, upgraded ignition, intake, exhaust and headers. Id like to upgrade the camshaft or possibly do a...

    Chevrolet Silverado 1500

    -

    Car Customization

  • P205/65R15 CAN BE REPLACED BY P205/65R16? 3 answers

    can i replace tire size mentionned above

    2006 Chevrolet Malibu LS

    -

    General

  • 79 Blazer 1 answer

    Bought a 79Blazer 350. Does anyone know the MPG? Going back to the states to pick it up in WA and drive it to IL. I got to calculate how much to save for gas. Thanks

    1979 Chevrolet Blazer

    -

    General

Silverado 1500

Looking for a Used Silverado 1500 in your area?

CarGurus has 155,182 nationwide Silverado 1500 listings starting at $1,395.

ZIP:

Search Chevrolet Silverado 1500 Questions

Chevrolet Silverado 1500 Experts

#1 John Carson
John Carson
Reputation 1,830
#2 Silverado_owner_2006
Silverado_owner_2006
Reputation 1,550
#3 Rowefast
Rowefast
Reputation 1,510
View All

Related Models For Sale

Used GMC Sierra 1500
939 Great Deals out of 62,274 listings starting at $1,395
Used Ford F-150
2,690 Great Deals out of 212,354 listings starting at $1,000
Used Dodge Ram 1500
531 Great Deals out of 12,827 listings starting at $1,995
Used Chevrolet Silverado 2500HD
325 Great Deals out of 25,709 listings starting at $2,500
Used Toyota Tundra
584 Great Deals out of 30,729 listings starting at $2,637
Used Toyota Tacoma
619 Great Deals out of 35,127 listings starting at $2,155
Used Chevrolet Tahoe
772 Great Deals out of 28,452 listings starting at $1,500
Used Ram 1500
1,195 Great Deals out of 115,424 listings starting at $6,995
Used Chevrolet Colorado
262 Great Deals out of 19,415 listings starting at $1,995
Used Chevrolet Camaro
282 Great Deals out of 38,299 listings starting at $1,250
Used Ford F-250 Super Duty
398 Great Deals out of 45,077 listings starting at $2,000
Used Ford Mustang
362 Great Deals out of 44,486 listings starting at $1,000
Used Chevrolet Avalanche
225 Great Deals out of 5,743 listings starting at $2,200

Used Cars For Sale

2017 Chevrolet Silverado 1500 LT Crew Cab 4WD For Sale
25,416 listings starting at $31,371
2016 Chevrolet Silverado 1500 LT Crew Cab 4WD For Sale
36 Great Deals out of 1,436 listings starting at $27,980
2015 Chevrolet Silverado 1500 LT Crew Cab 4WD For Sale
42 Great Deals out of 1,487 listings starting at $21,790
2014 Chevrolet Silverado 1500 LT Crew Cab 4WD For Sale
55 Great Deals out of 2,112 listings starting at $18,990
2013 Chevrolet Silverado 1500 LT Crew Cab 4WD For Sale
66 Great Deals out of 1,816 listings starting at $14,988