am i the only person who didn't know...
 

that you don't rotate the tires on a porsche?

can't say that i've ever heard of not rotating tires on any car, even if diff size on front/back - than you just switch rear's left and right and ditto for the front.

when i was at dealer this am to drop off car and inquired about the vibration problem maybe being a tire out of balance, i then asked, "if that's the prob, will you also rotate the tires for me" i got a look like i was crazy - then i thought, oh maybe they mean they won't do it under warrantable service - so i said, i'd pay for it. then i get the, we don't rotate tires on porsche - go figure - everyday i learn something new and unusual about this lil beast!

Hi,

The Boxster uses Directional Tires. Directional Tires are designed to improve wet-road traction and have an asymmetrically designed tread to provide more rubber contact on the outer edge of the Tire with the road.

Directional, high performance tires are mounted with the arrow on the top of the sidewall pointing in the direction of travel. When these tires are rotated, it is important that they remain on the proper side of the vehicle. Since the Boxster uses a different size Tire Front/Rear, they cannot be rotated. Hope this helps...

Happy Motoring!... Jim'99

thanx - now can you come out to soCal and figure out why my car is shaking?!!!!!!

Some people actually rotate directional tires by dismounting them and remounting them on the other wheel. Kind of not very cost-effective on a tire that wears down as fast as these do though, eh? :)

It's also been noted that the "directional" part of directional tires really just refers to how the tread responds in the wet, and how quiet the tires are. I've known a lot of racers that rotate their directional race tires--they're running enough camber/toe to get the inside edge to wear out rather fast, plus their running shaved R-compounds where hell, the tread is just slowing you down. :)

But, that's a very specific application and you didn't hear it from me!

Ummm. Yup.

Have you changed your blinker fluid yet???

I "rotated" my tires every 1500 miles or so on the last set. I knock the rubber off and move it to the other side. This set is Sumitomo rubber, which is so stinking cheap I won't bother.

But if I buy Michelins or some expensive tire next time around, I'll be back to the odd looks at Discount Tire when I tell them to unmount and remount my tires on the other side.

The guy doing the work always laughs, then says, "Hey, that's smart! I guess you can rotate directional tires if you want to pay $80 to do it."

At $225 each for 17's, I think it's worth it to do it at least a couple of times.

The trick is not to let the tires wear too much before you do it.

You 987 owners with those $350 19's should consider doing this sooner than later.

DP,

Have you tried synthetic blinker fluid? Supposed to last until the next oil change.

i'll change the blinker fluid, but first i need to locate and swap out the flux capacitor!

I just mentioned something about that :)

Damn. I thought those fancy 987's came with a Mr. Fusion!

Hi,

You're correct, once you absorb the cost of Mounting and Balancing, there's not a great deal of Cost/Benefit to mounting the Tires on the other wheels. Better to save the cost and apply it to the next set of Tires...

Happy Motoring!... Jim'99