[forgaming]

While driving on a long-distance trip last week, I noticed that our Ody adds about one extra mile on its odometer for every 50 real miles traversed. It's only noticeable when clocking longer distances. Has anyone noticed this on their Ody as well? It's not a real problem (I don't think being 2% off would impact the resale value of the car too much), but it's enough to be noticed. And I wonder if it's even worth taking it to the dealer for an adjustment, assuming it's not a complicated thing to get fixed.

------------------
(o: Terry )
'02 GG EX-L RES
Splash guards, mod floor mats & cargo tray, Poron backup sensors, VCR/TV tuner

 

[accordian]

My new '02 adds about 2.5%, which is almost the same as yours. I bet they all do it. Most odometers aren't exact, but it would seem they could do better than this. I'd bet very few people even notice, and Honda would consider it close enough. I wonder if there is a law concerning odo accuracy, considering so much rides on the value it displays.

 

[Car2ns]

I agree with the value of a lower odometer display, but it also equates to the warrenty expiring earlier than it should too. hmmm.

 

[Aardvaark]

2% accuracy on odometers and speedometers is considered pretty accurate. Somewhere I read even police certified speedometers only have to be within 2%. I don't recall ever having owned a car or truck that wasn't at least 1 to 3 mph off at 60mph. Tire wear will eventually effect the percentage causing even slightly more inaccuracy.
-Mark

 

[DUTCH1]

When you replace your tires, go +1 size up; and it'll help cure the problem. DUTCH

 

[nds]

Mine is off about 2% with worn out Affinity tires. Figured out that new tires of same type would restore it close to but not quite right until the tires started wearing. Larger tires would help, but that is almost impossible. In all my searching, I found only one tire that would fit that is 1% larger, and I could not find any dealer support for it in my area. That would be the ideal in that it would make the odometer average about right over the life of the tires. However, all other tires I find even in the 225-60 and 235-6 sizes are actually smaller in diameter than the Affinity 215-65. Will probably have to accept a smaller tire and even worse odometer error to get a better tire.

 

[DUTCH1]

The 235/60-16's are just a shade larger than the stock 215/65-16's. The following URL goes to a very nice tire size calculator. Scroll down the page and use the one at the bottom.

http://www.miata.net/garage/tirecalc.html

 

[nds]

Might be the case generically. However, different story when you look at actual manufacturer data. For instance, Firestone claims 27 inch diameter for the 215/65-16 Affinity, but Michelin claims 26.8 for the same size Symmetry, both on a 6.5 inch wide wheel. Now, the Symmetry 235/60-16 on a 7 inch wide wheel is 27 inches. But, Michelin notes that dimensions vary depending on wheel width and shows examples that the 225/60-16 is 26.5 inches on a 6.5 inch wheel but 26.8 on a 7 inch wheel. Thus, the 235/60 on a 6.5 inch wheel is probably smaller than the 215/65 on the same width wheel. Also, seems to be very few tires made in the 235/60-16 size even if they are larger. Further, it is a heavier tire and large enough it probably should have a 7 inch wheel.

 

[DUTCH1]

I have Michelin Symmetry 235/60-16's on my 99EX. The ride is vastly improved; and there have been no problems. DUTCH

 

[c5862]

While driving on a long-distance trip last week, I noticed that our Ody adds about one extra mile on its odometer for every 50 real miles traversed. It's only noticeable when clocking longer distances. Has anyone noticed this on their Ody as well? It's not a real problem (I don't think being 2% off would impact the resale value of the car too much), but it's enough to be noticed. And I wonder if it's even worth taking it to the dealer for an adjustment, assuming it's not a complicated thing to get fixed.

------------------
(o: Terry )
'02 GG EX-L RES
Splash guards, mod floor mats & cargo tray, Poron backup sensors, VCR/TV tuner

Did anyone fix this problem? I have a 02 EX-L with 2000 miles. I found the odometer reads 21.3 mile on a 20.5 mile distance.
I figured that in addition to warranty run out fast, it will also make gas mileage look good.

 

[Phace]

Theoretically it is not the diameter that matters, it is the circumference...

The Diameter fluctuates as the tire bends under pressure... the circumference does not.

 

[blackwolf]

So does this mean that, for us who have 18's, the odo would be right then?

 

[2002 LX]

Tire Size Comparison

Spec Sidewall Radius Diameter Circum Revs/Mile Difference

225/60-16 5.3in 13.3in 26.6in 83.7in 757 0.0%

235/60-16 5.6in 13.6in 27.1in 85.1in 744 1.8%

 

[Jerry O]

That's one reason I went to the 235 mm section tire.

Jerry O.