Couple questions on tire pressure

**jake** · #1 (**permalink**) 01-14-2008, 08:12 PM

I've had my new CS just short time and noticed the following discrepancies in tire pressure specifications:

1. The owner's manual specifies 32 psi front and 36 psi rear. A sticker in the car says 32 psi front and 37 psi rear. I realize it's not a huge difference (for the rear), but which is correct?

2. For long term storage the owner's manual says to inflate the tires to 58 psi to prevent flat-spotting. However, the maximum inflation pressure printed on the tire sidewalls is 51 psi. Should I use 51 psi instead of 58 psi for long term storage?

BTW I have the 19" wheels.

**Gator Bite** · #2 (**permalink**) 01-14-2008, 08:20 PM

I think your discrepancy is because of the 19" wheels. That would suggest the sticker is more accurate, as the cars get a different sticker if they have different wheels.

I can't comment on the 51 vs. 58 psi storage pressure, but I do look forward to reading that answer.

***PolarPorsche*** · #3 (**permalink**) 01-14-2008, 08:35 PM

Quote:

Originally Posted by jake

I've had my new CS just short time and noticed the following discrepancies in tire pressure specifications:

1. The owner's manual specifies 32 psi front and 36 psi rear. A sticker in the car says 32 psi front and 37 psi rear. I realize it's not a huge difference (for the rear), but which is correct?

2. For long term storage the owner's manual says to inflate the tires to 58 psi to prevent flat-spotting. However, the maximum inflation pressure printed on the tire sidewalls is 51 psi. Should I use 51 psi instead of 58 psi for long term storage?

BTW I have the 19" wheels.

I store my car for 6 months every year and inflate the OEM tires up to 45-PSI, I have never had a problem with flat-spotting.

58-PSI sounds a little extreme, no need to stress your tires like that.

**jake** · #4 (**permalink**) 01-15-2008, 05:34 PM

I think I'll just go with 51 psi for long term storage. Even if the tires can take 58 psi, I can't imagine 51 psi will be that much worse.

I've only been able to drive the new CS once in the past 6 weeks because of the weather. We had 24 days of precipitation in December (mostly snow or sleet) with record snowfall totals. Now we're getting more winter storms this week, so I anticipate the car will have to remain stored in the garage until spring.

**Gator Bite** · #5 (**permalink**) 01-15-2008, 06:01 PM

Quote:

Originally Posted by jake

I've only been able to drive the new CS once in the past 6 weeks because of the weather. We had 24 days of precipitation in December (mostly snow or sleet) with record snowfall totals. Now we're getting more winter storms this week, so I anticipate the car will have to remain stored in the garage until spring.

Yeah, thanks a lot Jake....

You do realize that our winter bombardment is a direct result of you and I buying Caymans don't you?

One year I bought a new snow blower. It didn't snow for 2 years. The damn thing was out of warranty the first time I used it... Just the way things seem to work out for me.... (sort of kidding)

**jake** · #6 (**permalink**) 01-15-2008, 06:56 PM

Quote:

Originally Posted by Gator Bite

Yeah, thanks a lot Jake....

You do realize that our winter bombardment is a direct result of you and I buying Caymans don't you?

Right...where is global warming when we need it?

What part of CT are you in, Gator Bite? I used to live in Glastonbury.

**gemars** · #7 (**permalink**) 01-15-2008, 11:57 PM

I wouldn't have any qualms about inflating to 58 psi as long as you don't drive it like that. I know we've gone to 60 psi to seat the bead on some of mine.

Greg

BGLeduc · #8 (**permalink**) 01-16-2008, 12:02 AM

Quote:

Originally Posted by gemars

I wouldn't have any qualms about inflating to 58 psi as long as you don't drive it like that. I know we've gone to 60 psi to seat the bead on some of mine.

Greg

Hey Greg...Happy New Year.

Heck...I did drive it like that when I took delivery, having overlooked the warnings here that many dealers were not setting the pressures right.

Sure as hell drove like there were cement tires on there!

Brian

Retired-Teach · #9 (**permalink**) 01-16-2008, 12:04 AM

Gator Bite,
This is the second year for my snowblower. Does that mean I can expect heavy snows next year?

Okv · #10 (**permalink**) 01-16-2008, 02:56 AM

Why do you get all the snow..
No snow here, just rain, it's not fair.
And you even don't want it.

**jim@tirerack** · #11 (**permalink**) 01-16-2008, 06:01 PM

The extra psi is if you store the car with the tires on the car. If you are running winter tires and the summer wheels and tires are off the car there is no need to put more air in the tires.