98 V70 T5 wagon - front tire wear

[gjz30075]

I, too, get the best longevity by increasing tire pressures way up beyond what's shown on the gas lid door. I run 42 lbs all the way around. A rougher ride but my 50k wear tires do really now go 50k.

[mas]

I have checked the allianment at 2 different shops both said that it was OK. I check my tire pressure regularly (32psi front and back)

I appreciate all of the comments and info.!

[matthew1]

Your high pressures will rattle these cars to death.

Agreed. Since our 850s/70s suspensions are pretty tight ("harsh" even), especially the turbos, high tire pressures tend to wear these cars down.

I'll never be able to prove it, but I'm sure that with a nice compromise ride like BMW we wouldn't be seeing as many ABS module failures. As many.

But hey, "you live with the suspension your Volvo has, not the one you wish it had".

[Craigd2599]

how are the control arms / ball joints?

[holler1]

Sorry to differ with the experts, but I agree with gjz30075. I run 40 psi on the front. If I use the recommended pressure, tires wear out very fast on both inside and outside edges on my V70 AWD. The AWD is heavier in the front though.

[nightc1]

Of note, the weight of the car as listed in the gas flap is dry weight correct? That is on an empty tank. When the tank is full that's another ~114 pounds of gasoline (19 gallons @ 6 pounds per gallon).

As for the volvo suspension, that's one thing I've been thinking to upgrade. It'll be better on me and the car for the suspension to do a better job than what the factory stuff is capable of. Regardless though, you get a harsh ride no matter what pressure .... it's a Volvo.

But the tire wear is a clear case of under inflation. There could be another part causing this, but in most of those cases the wear is not even on the left and right... it's more lopsided or limited to one side or the other. Also, I'd be curious to know if those with this issue also didn't rotate their tires enough. That is at least every other oil change (or once every 6000 Miles).

This thread has made me curious though. I think I'm going to get my car weighed and see how the weight is distributed and how accurate it is compared to the sticker. There's a Cat Scales place a few miles up the road by the interstate. It'll cost a few bucks to do this but I'm curious what each axle is handling and these places weigh and certify (since it's mainly for truckers and they get in major trouble for going over weight).

[Red-Arrow]

Ever heard of 60psi! used for good gas mileage but gives a wooden feel and harsh roller coaster ride feel.

I just deflated my tires to what I think is 40Psi according to the Shell Psi gauge.

I know 32 is very comfortable but is the legal liability rating given by tire manufacturers even if its not the best.