A good guideline is to rotate the tires every oil change.

The rears should not wear faster than the fronts on a FWD car. 60+% of the weight is on the front, all steering is on the front 70+% of braking is on the front.

Are your rears wearing even across the tread or are some parts of the tire wearing faster than others?

Do you carry a heavy load in the trunk?

What are your tire pressures?

In over 20 years of hot Roding FWD cars I have never seen on wear the rears faster. It will be interesting to sort out why yours is.

i suppose the wear is a little more on the outer edges, i dont rly keep anything in the trunk, but i corner pretty hard, its not that i drive particularly fast its just that i dont rly slow down for turns

I would guess one of two things is going on.

Something in the suspension is starting to wear out; looks good on the alignment rack but shifts under load.

The other is your rear tire pressure is too low for your driving style. Make a chalk mark from the center of the tread to the center of the sidewall. Go for a spirited drive and see how far up the side of the tire the chalk mark wears off. If it is more than 1/4 inch your tires are rolling over on the sidewalls. If that turns out to be the case post back and we can go over addjusting the pressure to reduce or eliminate it. (pics would help)

Greyhare.. you might want to change the oil more often than the tires...lol

I think the problem here is he'* not slowing for corners. Probably sliding the back end on corners at times.

What about winter treads?

No Bill, rotate the tires when you change the oil not change the oil when you rotate the tires.

Oil change every 3k to 5k miles. Rotate tires every 3k to 5k miles.

The cornering is why I asked him to chalk the tires. I think his tires are rolling over.

While I am here, Nerv chalk the fronts too. Tire pressures can have a big impact on cornering stability and balance.

What KIND of tires are we talking about here?

wow, lots of responses, ok, def not underinflated, i keep my tires at 35 for better gas mileage, by 'under load' i assume you mean 'in motion' because alignment racks do let the car sit on it'* wheels, my tires are firestone affinity, i tihnk they also have the suffix LH30? i think i heard they wear pretty fast, i was gonna get fuzions but my local place ddint have em in stock so they offered me the affinitys which were about $20 more per tire for the price of the fuzions

35 is probobly a bit low for performance driving on those tires. The LH30 is a touring tire not a performance tire. Try chalking the tires front and rear, then repeat with the pressure set ~3psi above the owners manual recomendation. If the tires are rolling over this will help a bit and make the car feel more planted in the corners.

the factory spec is 30 psi, 35 is above spec, and yes i am aware that they are touring tires, i have long drives to and from college, plus its a bonneville... u know... anyway like i said it'* not that im going fast or being particularly aggresive, i just dont slow down enough for turns, guess i should work on that