How much does tire pressure change with temperature?

About 2 percent per 10 degrees Fahrenheit, which is roughly 1 psi per 10 degrees on a passenger tire near 35 psi. Pressure rises as it warms and falls as it cools.

What tire pressure should I run on my Tacoma?

Start from the door placard, usually around 35 psi for factory SL tires. Owners running load-range E tires often use about 36 to 40 psi daily and air down off-road.

Should I run E tires at 80 psi?

No. 80 psi is the maximum inflation for a load-range E tire, not a daily setting. Running it that high on an empty mid-size truck rides harshly and wears the center.

Tire pressure

Adjust Tacoma tire pressure for temperature.

Enter the pressure you set, the temperature then, and the current temperature to get the corrected cold pressure.

In short

Adjusts cold tire pressure for a change in ambient temperature, about 2 percent per 10 degrees Fahrenheit.

Explains load-range pressures and that an LT tire needs more pressure than a P-metric tire for the same load.
Tacoma placard pressure is around 35 psi; never daily-drive an E tire at its 80 psi maximum.

Pressure and temperature

Correct cold pressure for the weather.

Pressure you set (psi)

Temperature when set (°F)

Current temperature (°F)

Corrected cold pressure

What to set now so the tire reads right when cold.

Corrected cold pressure: 32.2 psi
Change vs set: -2.8 psi

Tire pressure moves about 1 psi per 10°F. Pressure rises as it warms and falls as it cools.

Load ranges

How SL, C, D, and E tires differ in pressure.

Code	Range	Ply	Max psi	Notes
SL	Standard Load	~4 ply	35 psi	Factory Tacoma fitment. Softest ride, best MPG. P-metric derated 10% on a truck.
XL	Extra Load	reinforced	41 psi	Reinforced passenger tire. A bit more capacity than SL.
C	Load Range C	6 ply	50 psi	Light LT. Middle ground for mild overland weight.
D	Load Range D	8 ply	65 psi	Heavier LT. Common in aggressive A/T and M/T sizes.
E	Load Range E	10 ply	80 psi	Towing 5,000 lb+, heavy overland, rocky trails. Heavier, stiffer, ~1-2 mpg cost.

The Tacoma door placard is around 35 psi. On a load-range E tire, 80 psi is a maximum inflation, not a daily setting.

What it does

How this tool helps.

Temperature correction

Corrects cold pressure for a temperature swing, roughly 1 psi per 10 degrees Fahrenheit.

Load-range context

How SL, C, D, and E tires differ in pressure and why LT tires need more pressure for the same load.

Tacoma pressures

Placard pressure near 35 psi, typical daily pressures, and why 80 psi is a maximum, not a daily setting.

Related tools

Load index lookup Find my tire size