Hello, s2K brain trust:

Here's the Setup:

MY2002 s2K
all stock, 20K miles
just (500K miles ago) put in new re750 in the rear (245/45/16)
s03 in the front, worn almost down to the wear bars on the inside, lots of tread left on the outside

Went on a trip to Yosemite last weekend and noticed the car was behaving strangely. Bump steer at lower speeds, very squirrelly front end, not the usual confidence-inspiring handling. nothing seemed to be amiss (not that i would necessarily know...), except for different tire brands.

checked tire pressure - 35lbs in left front, 32 lbs in right front. rears at 32 lbs both. Take some air out of the left front, and she is back handling like a dream.

Does this make sense? would 3 lbs of pressure difference make all that much difference in regular driving, or am i crazy? Could it be that the differences between tire brands from front to rear magnified this?

Thanks.

 

I'd have the alignment checked, too...

 

different tire brands? Are you kidding? Different tire brands can mean different sizes i.e. 15/45/205s for one brand can and most likely is different than another brand of 15/45/205. Also the tread pattern is obviously different which makes the tires handle differently. I would get all 4 tires the same brand. You could have some serious under/over steer and be very dangerous near the limit.

 

[QUOTE]Originally posted by avs2k

or am i crazy?

 

[QUOTE]Originally posted by avs2k
Hello, s2K brain trust:

Here's the Setup:

MY2002 s2K
all stock, 20K miles
just (500K miles ago) put in new re750 in the rear (245/45/16)
s03 in the front, worn almost down to the wear bars on the inside, lots of tread left on the outside

Went on a trip to Yosemite last weekend and noticed the car was behaving strangely.

 

[QUOTE]Originally posted by ninegrand

 

What I am saying is they "should" be of the same make/model and rotating tires (side to side is the only option on this car), is a way of maintaining even wear on the tires.

I can't say if things would improve for you since you have different tires on the rear and I have not let my insides wear down that far prior to swapping side to side. IMO it would at least be a step in the right direction for you.

 

ok. thanks.