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Long-Term Tire Wear

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Old Jul 22, 2018 | 11:14 AM
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Long-Term Tire Wear

Our '94 FD seems to wear the rear tires slightly more quickly than the front. There are currently about 30K miles on the Bridgestone LS-V set, not frequently rotated, and the rear tires are noticeably more worn than the fronts. I just rotated them, but is that common? There seems to be no unequal wear like due to bad alignment. Is acceleration/deceleration harder on the rears than steering/deceleration is on the fronts? (Car is mostly stock.)
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Old Jul 22, 2018 | 02:46 PM
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Originally Posted by wstrohm
Our '94 FD seems to wear the rear tires slightly more quickly than the front. There are currently about 30K miles on the Bridgestone LS-V set, not frequently rotated, and the rear tires are noticeably more worn than the fronts. I just rotated them, but is that common? There seems to be no unequal wear like due to bad alignment. Is acceleration/deceleration harder on the rears than steering/deceleration is on the fronts? (Car is mostly stock.)
The Torsen diff (limited slip) puts more slippage into the rear tires on any relatively sharp turn while accelerating. I've always found that my rears wear faster than the fronts due to that. And the front and rear wear patterns are different. The fronts wear more on the edges, while the rears wear more toward the centers.
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Old Jul 22, 2018 | 03:56 PM
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Thanks, Dave. Seems normal, then.
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Old Jul 22, 2018 | 05:28 PM
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Originally Posted by wstrohm
Thanks, Dave. Seems normal, then.
Yes, at least for relatively-normal street use. All bets are off for cars used for track days, etc.
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Old Jul 23, 2018 | 09:32 AM
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A street driven FD, with some spirited driving, will wear out the rears first. Proper rotation will remedy this problem. That being said, if you are getting more than 15K out of a set of tires, you are not driving the car properly
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Old Jul 23, 2018 | 10:25 AM
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if you are getting more than 15K out of a set of tires, you are not driving the car properly
It's wife's car, and she is "a little old lady from Pasadena." She actually kept the rev counter under 3K rpm for the 1st 1000 miles after the engine replacement! (I think now she is up to 4K rpm maximum.) I'm having a hard time convincing her to let me add TC-W3 premix now that it's broken in.
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Old Jul 24, 2018 | 06:25 AM
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Originally Posted by adam c
A street driven FD, with some spirited driving, will wear out the rears first. Proper rotation will remedy this problem. That being said, if you are getting more than 15K out of a set of tires, you are not driving the car properly
Maybe it depends on the alignment used and tire width, but that’s not my experience. Front inside has always worn faster on my car with (IIRC) 1/2 degree more neg. camber front and rear than stock...”stock” toe. I typically have alignment checked with new tires. Rotation mitigates but with directional, doesn’t remedy. And IMO on a street car the wear-rating/compound has at least as much to do with mileage as how you drive. That said, more than 15k sounds like all-seasons.

Last edited by Sgtblue; Jul 24, 2018 at 06:30 AM.
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Old Jul 24, 2018 | 07:59 AM
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Originally Posted by Sgtblue

Maybe it depends on the alignment used and tire width, but that’s not my experience. Front inside has always worn faster on my car with (IIRC) 1/2 degree more neg. camber front and rear than stock...”stock” toe. I typically have alignment checked with new tires. Rotation mitigates but with directional, doesn’t remedy. And IMO on a street car the wear-rating/compound has at least as much to do with mileage as how you drive. That said, more than 15k sounds like all-seasons.
The RF inside wear is usually a result of repeatedly taking FWY entrance/exit ramps near the limit - hard to resist with an FD. The RF tire gets dragged across the road at high negative camber. Adding more negative for better handling makes that worse.
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