Truck tire pressure.
Recommended cold PSI is 60 front & 65 rear. They are Michelin 275/65/20 load range E on a 2017 F250 Power Stroke. Should I increase the pressure when towing my 39' toy hauler (Triton by Voltage)?
Forum Discussion
atwowheelguy wrote:
Here's the inflation table. You have to determine the weight on your axles by taking it to the scales.
60 psi will carry 6060 lbs. per axle.
65 psi will carry 6390 lbs. per axle.
Front GAWR could be 4550-5600.
Rear GAWR should be 6340.
Those standard pressures will handle any load up to the limit on the axles.
What is the front and rear GAWR on your truck?
all that is shown here is correct, BUT, often, GAWR's are exceeded... a 40' fiver with a hitch weight of 5000lbs+, will exceed the 6340 GVWR of this axle. so all other carefully prepared documents become inaccurate...
exceeding/ignoring these axle weight RATINGS means little to the law in a privately owned/used vehicle, but it is forbidden by law in those vehicles used in a work/commerce/for-hire application.. although STILL often ignored.
and there is one thing missing here to qualify the included document... which tire manufacture published it?... some manufactures design/build their tires with different pressure and load ratings than their competitions tires of the same size..
only the individual tire manufacture can tell you what the pressure/load rating is of their particular model of tire...
and the VEHICLE MANUFACTURES tag only indicates the pressures required for the unladen vehicle with the OEM supplied tires on it.
