I've got 150,000+ miles on my '04 G35 coupe so I know all too well how it eats tires for breakfast. And I've tried them all....Michelin, Dunlop, Goodyear, Falken, Cooper, Nitto, Firestone and maybe others that I can no longer recall. But lately it is eating my rear tires like it's a free all you can eat buffet. I've gone through two sets of rear tires in about five months. I put four Nitto's on about five months ago and within 6,500 miles (about three months) the two rear tires were completely and dangerously bald (a rainy day in FL with bald tires is a bad combo). Blaming it on the fact that they were Nitto's I replaced the two rear tires with some Falken's and within 4,500 miles (2 months time) they are now also bald. And when I say bald I really do mean bald all the way across - there is no tread left (you see the whole penny!).

It's not the alignment because I had it aligned when I got the Nitto's put on. It's not the tire pressure nor the way I drive. And while I do commute 100 miles a day (hence the high mileage) it's 90% highway driving and I've been driving the same way to the same place since I got the car in 2003.

I took it to the dealer and they put it on the lift and they don't have any explanation (other then wanting to sell me two new tires).

Historically I could always get 25,000 to 30,000 miles out of the rear tires (the fronts would go farther) so I don't know what's going on. But unless Old Mr. Firestone or Grandpa Goodyear decide to adopt me and give me free tires I can't afford to buy tires every 3,000-3,500 miles.

I'm really hoping somebody has an idea of what's causing this because otherwise I'll be forced to sell the car. Which I'd hate to do since I've meticulously cared for it over the years and it looks great.

Any solutions or ideas would be greatly appreciated - Thanks.

 

are u lowered? if so maybe your camber kits in the rear are ****ed up?

 

are all the tires you buy performance tires? If so, that could be your problem...especially with all that highway driving.

 

I'm not lowered - I haven't really done any modifications to the way it came. And while the Nittos may have been a softer performance tire I've had the same Falkens before and the previous set went for at least 25,000 miles. And that was with exactly the same type of driving (in fact the exact same driving since it was always the same route from my house to the office). Don't know about the cambers though - nothing was mentioned when it was aligned and the dealer didn't mention anything about that either when they had it up on the lift a few days ago.

 

Just a few months ago I had the same thing except w/ Pilot Sport PS2s.. One of the rears actually blew out on me (due to excessive tire wear) on my way home from the airport..

The tires were on for just over 3000 miles.. In hindsight I should have checked the treads on the tire when I noticed I was slipping in the rain, but I only had them on for 2 and 1/2 months so I never thought to check..

My car is lowered on Z S-techs, SPC camber kit w/ an alignment, and mainly use the car for commuting to work.. I didn't even drive the car real hard and mostly drive on main roads..

I complained about the low mileage and was able to get some credit from Michelin on some new rear tires.. I got some Pilot Sport A/S's on the rear, but the car is garaged for the winter so I can't report on improvements on tread wear right now..

 

Have you changed your shocks & springs? Stocks are good for around 60,000 I had the same problem but I'm lowered and i went with SPC REAR Camber & Toe Bolts. after a good alignment no more excessive wear.