I am just making sure before I start driving. The weather is really cold/snowy/icy now. I just want to be the safest I can be. I wasn't sure if I kept the factory air pressure in the tires or decrease the air amount.
I drive a performance truck with 255-45/17 tires. If that make any difference.
Thanks for the help!|||Every time the outside temperature drops 10 degrees Fahrenheit, the air pressure inside your tires goes down about one or two psi.
Drivers should check their tire pressures frequently during cold weather, adding enough air to keep them at recommended levels of inflation at all times.
Never reduce tire pressures in an attempt to increase traction on snow or ice.
It does not work and your tires will be so seriously under-inflated that driving will damage them.................|||You're going to want more of the tire to remain in contact with the road for maximum friction, so slightly under the recommended pressure (maybe 5-8 PSI or so). This will slightly decrease your fuel economy, but not by a whole lot and not enough to damage the tire or significantly reduce its useful life.
Unless you're driving on a specifically snow/studded tire, then just go with whatever is written on the side.
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