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Old 07-30-2017, 08:18 PM   #21 (permalink)
ksa8907
Master EcoModder
 
Join Date: May 2012
Location: Tampa, FL
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Volt, gas only - '12 Chevrolet Volt Premium
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Quote:
Originally Posted by Jez77 View Post
I'd personally never sacrifice grip to save a little bit of fuel especially in the rainy season (although in theory higher pressure is less likely to hydroplane ).

I wonder if the tables get turned on rougher roads?
I know with mtb bike tyres lower pressure means lower resistance on dirt trails within reason.
Once you get away from the citys the roads get pretty rough in OZ
The problem with saying "high inflation pressure" is there is nothing to compare against. Is 40psi high? What about 50? 60? 120? I run my tires around 45 in summer and drop them down to about 36 in winter. Never have a problem with wet roads.

It was mentioned before, but higher than stock pressure is often used in competition to make the tire more rigid and predictable. While you may get slightly SLIGHTLY less ultimate grip, it is much more predictable and enjoyable to drive as the car will more quickly respond to steering input.

Have i ever noticed less ultimate grip? No
Do i still drive with higher than placard tire pressure? Yes

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