235/40R18 Tire Pressure Chart

Proper tire load capacity at specified tire inflation pressures for 235/40R18 tires.

235/40R18 is a Metric tire size that comes with 2 tire load index and load range options.

Tire Size 26 psi 29 psi 32 psi 35 psi 36 psi (SL) 38 psi (XL) 41 psi 42 psi
235/40R18
SL 91
1047 lbs 1135 lbs 1224 lbs 1312 lbs 1356 lbs Show Specs
235/40R18
XL 95
1036 lbs 1135 lbs 1224 lbs 1312 lbs 1356 lbs 1389 lbs 1477 lbs 1521 lbs Show Specs

235/40R18 91 SL is a Standard Load tire with tire load index of 91 and maximum tire load capacity of 1356 lbs @ 36 psi.

Calculate proper tire load capacity for 235/40R18 91 SL tire within inflation range of 26 psi to 36 psi. Inflating 235/40R18 91 SL tire over 36 psi will not increase its maximum load carrying capacity of 1356 pounds.

When replacing vehicle's original equipment tires with 235/40R18 91 SL tire, calculate proper replacement tire inflation based on original tire's load capacity at its recommended tire pressure. Never overload 235/40R18 91 SL tire above its maximum load capacity of 1356 lbs.

Original Tire
is LT-Metric

235/40R18 95 XL is an Extra Load tire with tire load index of 95 and maximum tire load capacity of 1521 lbs @ 42 psi.

Calculate proper tire load capacity for 235/40R18 95 XL tire within inflation range of 26 psi to 42 psi. Inflating 235/40R18 95 XL tire over 42 psi will not increase its maximum load carrying capacity of 1521 pounds.

When replacing vehicle's original equipment tires with 235/40R18 95 XL tire, calculate proper replacement tire inflation based on original tire's load capacity at its recommended tire pressure. Never overload 235/40R18 95 XL tire above its maximum load capacity of 1521 lbs.

Original Tire
is LT-Metric

All listed data is for informational purposes only. TirePsi.com does not warrant or make any representations regarding the accuracy of or the results of the use of this information. Always refer to vehicle owner's manual for recommended tire pressure settings. Never overinflate or overload a tire beyond its maximum capabilities listed on sidewall. For individual tire size, refer to its load and inflation table.

Tires with 235/40R18 tire size

114 tire models are available in 235/40R18 tire size. Click on tire model to check its maximum tire inflation and tire load capacity.

Vehicles with 235/40R18 tire size

235/40R18 tire size is used for original equipment tires on 28 vehicles. Click on vehicle model to find its recommended tire pressure for 235/40R18 tires.