Dealer set tire pressure on 28 psi

TommyG37S · 11-01-2009, 07:17 PM

Why would they do that?? I decided to check my press this weekend since it's been colder out and it's 28. I only had the dealer mess with my tp so far. Shouldn't it be 35 like the doorsills suggest, and why hasnt my TPMS light gone off

Oh, I got the stock sport 19's by the way

Stoof@180Custom · 11-01-2009, 07:31 PM

It might be lower cause of the cold. But yeah they should def be like 34-36

Black Betty · 11-01-2009, 07:50 PM

TPMS on our cars is a joke. I think it has to be at least 8 PSI low before it indicates. And it doesn't tell you which tire is low or how low it is. Useless.

What was your dealership doing adjusting your tire pressures?

Blackjack · 11-01-2009, 09:09 PM

Yeah, your dealer messed up. Alway keep them inflated to spec as the sticker notes.

Quote:

Originally Posted by Black Betty

TPMS on our cars is a joke. I think it has to be at least 8 PSI low before it indicates. And it doesn't tell you which tire is low or how low it is. Useless.

What was your dealership doing adjusting your tire pressures?

If it were much more sensitive though people that live in colder areas of the US (northeast) would complain because every morning there lights would be on because the colder temps can inaccurately represent tire pressures (it evens happens to me in ATL sometimes). I've heard that a colder outside temperature can cause tire pressure drops by about 1 PSI for every 10 degrees F.

So for those of you in colder temp areas, yes you should always check and inflate your tires when "cold", but what that means is not immediately after driving because because driving generates friction and heat that increases the pressure inside the tires.

I know you know this BB, but just making it clear for some folks that may not.

TommyG37S · 11-01-2009, 11:48 PM

Yeah, supposedly they "check it" during service, at least that's what the service order said. I thought it was kinda too low so I added air and now they're all at 35

BradManUWF · 11-02-2009, 12:03 AM

It says 35psi for you guys? My door says 32psi. My TPMS came on when they all dropped to 29psi when it got cold in VA after I moved up there. Big temp difference between AL and VA.

2008G-Man · 11-02-2009, 09:52 AM

depends on size .... stock 18" is 33psi and 19" is 35psi. When I bought my used G the dealer had them at 42-46 ...my guess is to prevent flat spots while sitting on the lot.

bschurr · 11-02-2009, 06:04 PM

I have factory 19s (sport model) and did a little experimenting when I got my car. TPMS alerts @ less than 30 PSI. Living in the NY tri-state area I keep my tires at 39 PSI in order to provide extra protection from harsh potholes & roadway irregularities. Above 40 PSI the ride gets a bit harsh and below 34 PSI feels a little sloppy.

11-01-2009, 07:17 PM	#1
TommyG37S Registered User Trader Score: (0) Join Date: Apr 2009 Location: STL/St.Charles, MO Posts: 67	Dealer set tire pressure on 28 psi Why would they do that?? I decided to check my press this weekend since it's been colder out and it's 28. I only had the dealer mess with my tp so far. Shouldn't it be 35 like the doorsills suggest, and why hasnt my TPMS light gone off Oh, I got the stock sport 19's by the way __________________ '08 IP G37S\|Coupe\|Graph\|Prem\|Sport\|LEDs\|18%tint\|Injen CAI\|Eibach ProKit\|FI HFC's

11-01-2009, 07:31 PM	#2
Stoof@180Custom MYG37.COM Sponsor 2008 Infiniti G37 Trader Score: (1) Join Date: Mar 2007 Location: Staten Island, NY Posts: 2,030	It might be lower cause of the cold. But yeah they should def be like 34-36 __________________ ON VACATION G37NYC~180°~Iforged~Mastergrade~Seibon~Injen~Berk~ HKS~JIC~Hotchkis~GTSpec~Stoptech~

11-01-2009, 07:50 PM	#3
Black Betty El mero mero! 2008 Infiniti G37 Trader Score: (21) Join Date: Sep 2007 Location: Baytown, TX Posts: 7,209	TPMS on our cars is a joke. I think it has to be at least 8 PSI low before it indicates. And it doesn't tell you which tire is low or how low it is. Useless. What was your dealership doing adjusting your tire pressures? __________________ Get your custom grounding kits at If Black Betty doesn't look good, I don't look good!

11-01-2009, 11:48 PM	#5
TommyG37S Registered User Trader Score: (0) Join Date: Apr 2009 Location: STL/St.Charles, MO Posts: 67	Yeah, supposedly they "check it" during service, at least that's what the service order said. I thought it was kinda too low so I added air and now they're all at 35 __________________ '08 IP G37S\|Coupe\|Graph\|Prem\|Sport\|LEDs\|18%tint\|Injen CAI\|Eibach ProKit\|FI HFC's

11-02-2009, 12:03 AM	#6
BradManUWF Registered User 2008 Infiniti G37 Trader Score: (0) Join Date: Feb 2009 Location: Spanish Fort, AL Posts: 317	It says 35psi for you guys? My door says 32psi. My TPMS came on when they all dropped to 29psi when it got cold in VA after I moved up there. Big temp difference between AL and VA. __________________ '08 PG G37S, Premium, FI Cat-back, Fujita SRI, Stillen Spoiler, 8000K D2S

11-02-2009, 09:52 AM	#7
2008G-Man Registered User Trader Score: (0) Join Date: Oct 2009 Location: Northern MD Posts: 204	depends on size .... stock 18" is 33psi and 19" is 35psi. When I bought my used G the dealer had them at 42-46 ...my guess is to prevent flat spots while sitting on the lot. __________________ 2008 Journey,Premium,Blue Slate \| Illuminated Sills \| LED's-Trunk,Door,Map & License

11-02-2009, 06:04 PM	#8
bschurr Registered User 2009 Infiniti G37 Trader Score: (0) Join Date: Jul 2009 Location: Northern NJ Posts: 155	I have factory 19s (sport model) and did a little experimenting when I got my car. TPMS alerts @ less than 30 PSI. Living in the NY tri-state area I keep my tires at 39 PSI in order to provide extra protection from harsh potholes & roadway irregularities. Above 40 PSI the ride gets a bit harsh and below 34 PSI feels a little sloppy. __________________ '09 G37S Conv 6MT - Platinum/Graphite \| Prem \| Nav \| Tech

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