Speedometer miscalibrated?

[spyder40]

This
@RollingRocker mentioned this in a reply above and it went over my head but now that both @Vincenzo and @spyder40 mention it again, it clicked. I wasn’t too worried about the speedometer being off, I just figured I'll drive a bit faster so I go my intended speed but if this is going to impact my milage warranty than I'll look to getting it corrected. Wondering what the dealership will say, I have a feeling they'll try to brush it off as a minor thing.

Makes for what, almost a thousand miles difference over 36,000? Could be what gets you something fixed or not.

 

[RollingRocker]

This
@RollingRocker mentioned this in a reply above and it went over my head but now that both @Vincenzo and @spyder40 mention it again, it clicked. I wasn’t too worried about the speedometer being off, I just figured I'll drive a bit faster so I go my intended speed but if this is going to impact my milage warranty than I'll look to getting it corrected. Wondering what the dealership will say, I have a feeling they'll try to brush it off as a minor thing.

I had a big issues with this on my Mini Cooper. I was commuting 190 miles round trip to Spearfish SD to complete my Bachelors Degree. I know exactly how far it is from my door to the campus parking lot. This was based on driving the Subaru outback we had before we traded it for the Countryman and also using maps. The Countryman's tripometer would say it was 212 miles. So a total of 22 miles per trip in extra mileage I was getting hit with. Add that by 3-5 days a week of driving and multiply that by 16 weeks per term. It was adding up quickly. I honestly think they do it by design to shave off miles for warranty claims. When I purchased the proper size tire and put that on the Countryman the miles registered correctly. It also really skews the gas mileage before the tires I was getting around 30-31 mpg and after I was getting 24-25 mpg. So if they can skew the numbers to squeeze out a few more MPG by running like this then they can meet the efficiency guidelines. Some of this loss in mileage was related to the heavy tire I imagine. But when its says you're going father than you are and using the same amount of gas that screws the math up.

 

[timelapse]

Someone should approach Toyota directly about this and see what the options are.

I also do a lot of weekly long distance highway mileage and would prefer to have accuracy from a service and warranty perspective.

 

[EarthPIG_0311]

Yes definitely should. I'm guessing Toyota Corporation would be the best route? Or any suggestions on who to reach out to in Toyota.