2012 F150

[chaser841]

2012 F150 5.0. inTune 1r01i.
Can someone help me figure out how to update my tire size. When I go in to the adjustments and tire size... It gives me circumference. I am used to the Predator and giving the tire label size. I went from 275/65-18 to 285/65-18. Nothing major, but I would like my speedo as close to correct as possible.

[chaser841]

When I go into settings it shows...
Application: 1r02c
FORD PID Db: 1r01a

[Mike_Levy]

What brand and model of tire? You can usually go to the manufacturers website and get the diameter and circumference.

[chaser841]

Its the new Toyo Open Country A/T II that just came out. I don't see that information on their website.

[mikel]

size?

[chaser841]

285/65-18.

[mikel]

102.37", which is 260 cm.

From here:
http://www.gtsparkplugs.com/TireCalculator.html

[chaser841]

The range on the inTune Tire Circumference goes from 500-3510. And it looks like its set on 2319.

[mikel]

maybe its millimeters?

2600?

[chaser841]

That's what I'm hoping. I have set it to that. Will go for a ride here in a bit and see if that fixes it.