Nissan 370Z Forum - View Single Post - Tire pressure warning light is going off but the tires look fine

TreeSemdyZee · 01-25-2010, 11:20 AM

Nitrogen, due to it's properties, does last longer. Does not leak as much air along with a whole lot of other benefits.

Nitrogen in Tires : Information about Nitrogen Tire Inflation News, Benefits, Generator Dealers, Location Finder & More

OP. Get your tires pumped up to 35 pounds cold, not warmed up. The pressures in my old 350 would fluctuate as much as 10 pounds due to temperatures. If I had the tires set to 35 when the temps were in the mid-60s, they would drop below 30 pounds when the temperatures dropped well below freezing. If the temps went into the 90s, they might go over 40 pounds when they got hot. It's the nature of air. It compresses when it gets cold (see turbocharging) and expands when it gets hot.
Nitrogen is not nearly as susceptible to these issues because of its molecular structure.
As far as slipping when it gets cold, performance tires get very hard when the temperatures drop and reduces traction. If you have Sports Package, those tires get ridiculously hard when it gets cold.

01-25-2010, 11:20 AM	#31 (permalink)
TreeSemdyZee Premium Member Join Date: Dec 2009 Location: Kentuck-IANA Age: 60 Posts: 4,880 Drives: '09 370 & ‘14 Juke Rep Power: 27408	Nitrogen, due to it's properties, does last longer. Does not leak as much air along with a whole lot of other benefits. Nitrogen in Tires : Information about Nitrogen Tire Inflation News, Benefits, Generator Dealers, Location Finder & More OP. Get your tires pumped up to 35 pounds cold, not warmed up. The pressures in my old 350 would fluctuate as much as 10 pounds due to temperatures. If I had the tires set to 35 when the temps were in the mid-60s, they would drop below 30 pounds when the temperatures dropped well below freezing. If the temps went into the 90s, they might go over 40 pounds when they got hot. It's the nature of air. It compresses when it gets cold (see turbocharging) and expands when it gets hot. Nitrogen is not nearly as susceptible to these issues because of its molecular structure. As far as slipping when it gets cold, performance tires get very hard when the temperatures drop and reduces traction. If you have Sports Package, those tires get ridiculously hard when it gets cold. Last edited by TreeSemdyZee; 01-25-2010 at 05:19 PM.