Concern about tiers on 2010 V and MPG

[nieveser]

Originally Posted by Blind Guy

I, like A Priori, am one of the ones you've probably read posts on about tire pressures.

I am also like you, in that I have a V with Michelin Pilots. The Michelin's sidewall is significantly stiffer than that of the Bridgestone's, thus the lower maximum Cold Tire pressure. And, once again, the Michelin's are VERY sensitive to increases and decreases in tire pressures.

You must take into account, tires are responsible for other factors other than MPGs. You also MUST take into consideration things like: comfort, handling and brakeing.

With Michelin Pilots, tire pressures of 37 Front and 36 Rear give a compromise between those factors, Pressures below 37/36, but above 33/32 will give a more comfortable ride and better brakeing, but at the expense of MPGs. Pressures above 37/36 will possibly produce increased MPGs, but you will give up an important BRAKEING component.

Maximum MPGs may not be worth the costs of a comfortable ride, compliant handling and SAFE brakeing.

Experiment with your pressures, try the factory recommended 33/32, then increase them by a couple of lbs. and see what YOU think/like. REMEMBER, Michelins are EXTREMELY sensitive to small pressure changes, so go slow, and in small increments.

BTW, once you settle on pressures you're satisfied with, don't forget to Re-Initialize your TPMS (Tire Pressure Monitoring System) to reflect the new higher values (look in your Owners Manual in the Index for Initializing, or do a search on this Forum).

David (aka Blind Guy)

Thanks, I guess I will go 36/34 (2PSIs more) and see what I get.

[wvgasguy]

Originally Posted by Econ

You should get the air replaced with NITROGEN. This is will change the handling slightly and will keep the pressure increase to a minimum.

Ok, I'm grinning on the handling comment, but before I start a belly laugh are you saying oxygen (which is 78% nitrogen) will pressure up more as it is heated than pure nitrogen? I assume your dealer sould you the nitrogen filled tire upgrade?

[wvgasguy]

[quote=LRKingII;971428]

Originally Posted by Econ

I have mine inflated with 78% nitrogen will that help?

LOL, did your dealer try to charge you for that?