Expected MPG loss for a 3 inch lift and 285's

285/75/16 KO2's 3" lift with 300 lbs of armor 16-17 mpg doing 85 mph.

 

If you go into the settings for the navigation there is an option to calibrate your speedo using the GPS. It literally just says calibrate.

 

i get 15 with 285/70/17 stt pros and almost 1000lbs of armor and tent

 

That only helps with location during navigation. It does nothing with your speedometer and odometer

 

What's your bull bar if you don't mind me asking?

 

There is a specific one to click on. It worked on mine and it is spot on now. Never did any other calibration. Double checked it with roadsigns and had a cop Radar gun me to make sure I wasn't speeding. It will work.

 

Did you check your speedometer beforehand? The only way that would work is if you speedometer and odometer were off a good bit to begin with. Both of mine read about 2% low with stock 265/75R16. People wouldn't be spending over $200 for a hypertech calibrator if it could be done through the head unit.

 

Definitely. If I change tires, I'll just recalibrate my ultra-gauge by driving a known distance and call it a day.

 

Most uphill on a return trip can only be 50 percent