Tire size and effects on odometer
#1
Tire size and effects on odometer
I have an 05 with 18" OEM sport wheels. My crappy Turanzas are down to it's last days and have been looking here to see what people are replacing them with. As I've seen 235/45/18 are very slim pickins. Kuhmos are pretty reasonable replacements but there is a nationwide shortage on those right now. Seen that I can go 245/40/18 or 245/45/18 to get more choices. Using those calculators, it says the following compared to stock size at 60mph:
245/40/18 - 61.4 mph, 2.379% too fast
245/45/18 - 59.1 mph, 1.359% too slow
My question is, does that mean it will affect the odometer reading as well? Given you can drive 35K miles on the set:
245/40/18 - 35000 * .02379 = 832.65 miles more on odometer than actual?
245/45/18 - 35000 * -.01359 = -475.65 miles less on odometer than actual?
245/40/18 - 61.4 mph, 2.379% too fast
245/45/18 - 59.1 mph, 1.359% too slow
My question is, does that mean it will affect the odometer reading as well? Given you can drive 35K miles on the set:
245/40/18 - 35000 * .02379 = 832.65 miles more on odometer than actual?
245/45/18 - 35000 * -.01359 = -475.65 miles less on odometer than actual?
#4
Wow...no kidding. Never thought about the mileage affect. Can you tell me where you found this calculator? I'm curious to know what my adjustment would be (I'd have a negative affect based on the above, running 245/40/19's). That is good to know that the odometer reading is less than my actual miles.
#5
These are the best sites:
http://www.miata.net/garage/tirecalc.html
http://www.1010tires.com/TireSizeCalculator.asp
http://www.miata.net/garage/tirecalc.html
http://www.1010tires.com/TireSizeCalculator.asp
#6
Originally Posted by dukeyh
These are the best sites:
http://www.miata.net/garage/tirecalc.html
http://www.1010tires.com/TireSizeCalculator.asp
http://www.miata.net/garage/tirecalc.html
http://www.1010tires.com/TireSizeCalculator.asp
http://www.rims-n-tires.com/rt_specs.jsp
#7
Originally Posted by G35 Mass
I think this one is by far the best
http://www.rims-n-tires.com/rt_specs.jsp
http://www.rims-n-tires.com/rt_specs.jsp
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#8
Originally Posted by G35 Mass
I think this one is by far the best
http://www.rims-n-tires.com/rt_specs.jsp
http://www.rims-n-tires.com/rt_specs.jsp
I am mistaken! Yes, that site is definitely better.
#9
Originally Posted by G35 Mass
I think this one is by far the best
http://www.rims-n-tires.com/rt_specs.jsp
http://www.rims-n-tires.com/rt_specs.jsp
#10
Originally Posted by G35 Mass
I think this one is by far the best
http://www.rims-n-tires.com/rt_specs.jsp
http://www.rims-n-tires.com/rt_specs.jsp
Last edited by GuyLegend; 03-29-2007 at 08:08 PM.
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