Deity42

WTF?? I had my tires rotated last week at the dealer (because I wanted them to check out the suspension at the same time) and everything was ship-shape. Well last night in a huge downpour, my car is handling like ass. I know I am still running the stock Michelins and it was raining hard, but I was hydroplanning all over the place and the car didn't want to drive straight at all, and this is only at 40 mph.

So this morning I check my tire pressure after I wash my car like I always do, and most of the tires were inflated to 40 psi, one in the rear was at 42! I couldn't believe it! I know people will run on 34 or 35 for slightly better handling and gas milage, but 42 is just downright crazy. I am insainely pissed. I'm sending an Email to the service dept. today, and they're going to get a really nasty call tomorrow morning.

This is Sterling McCall Acura in Houston, btw.

Bitium

I run 38 in the front and back. No problems here, but I do have low profile tires with harder sidewalls

fsttyms1

i ran my factory tires at 40 with no ill handeling side effects. they handled alot better that way. it shouldnt have made it hydroplane worse at that psi

Jerry944T

Actually overinflated tires reduce hydroplanning.

Jerry

Pure Adrenaline

iTrader: (2)

Jerry --

It would seem so, but it doesn't make a big difference because by overinflating the tires, the contact patch on the tires was severely reduced, and it would cause similar driving characteristics as underinflated tires in a downpour.

On dry pavement, it would make a huge difference, but in the rain, it doesn't matter that much.

Deity42

*shurgs*

Either way I try to stick to 32 psi as close as possible. These are factory specs, you would think the shop would adhere to that.

killercalf

32 psi is what I'm going by. I tried over inflating once, but it was too bouncy. Plus when I took it to the dealer, they told me to keep it at 32 psi or somwhere around there.

Vicman17

That's why I check my own tire pressure every week (especially after the dealer services the car). Another great investment is a an Accu-Tire digital gauge ($15.00) recommended by Consumer's Report mag, those gas station gauges freeze up in winter and are not very accurate.

I have it @ 34 psi F, 32 psi R. Worked for me. Both 16" and 17"s.

Mr Zipps

I run my tires at 40 psi all year around with no problem...

tlsblack

Did your dealer work on the car when the tires were cold? If so, they may have inflated them because the pressure was below 32 due to the cold.

On these cold Massachusetts mornings, my tire pressure drops 5-8psi from where it is warmed up. I recently had the opposite happen with my dealer where they deflated my tires (because when I took them in they were hot from highway driving) and the next morning I measured 26psi all around.

medic

exactly, maky sure you check your tires in the morning. they may be have been below 40psi and just heated up when you drove them to get your car washed..even a 1/2 mile warms them up

VTEC11

Is it always a good thing to check the pressure in the morning? I know your suppose to do it before driving the car and heating the tires up, but obviously its going to be a little different if its 5F outside as opposed to a summer day where it could be 60-70F outside...

Deity42

Who do you take me for? My car sits in my driveway while I wash it myself (I even implied so in my first post). The tires were cold.