Quote:
Originally Posted by Chance
Dave, the Devil is in the details.
Ford also warns against lowering air pressure to improve ride, etc... If you follow that line of thought, then tires should be operated at the designated pressure stated on placard, not on what we think is necessary based on actual 4 corner weights.
If we accept that's what Ford is recommending, then the air pressure adjustment statement is not consistent. They can't have it both ways.
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In the F53 manual; Ford talks about recommended cold inflation pressure and maximum tire pressure. They state in a number of places to never inflate below the recommended cold inflation pressure listed on the Safety Compliance Certification Label which is located in the vehicle.
They also say:
Maximum Inflation Pressure is the tire manufacturer's maximum permissible pressure and the pressure at which the maximum load can be carried by the tire. This pressure is normally higher than the manufacturer’s recommended
cold inflation pressure which can be found on the Safety Compliance Certification Label or Tire Label.
Basically they have it both ways. Set the pressure to the tire manufacturers recommended pressure based on weight or the recommended cold inflation pressure which ever is higher.
Ford gives you the minimum pressure while the tire manufacturer sets the maximum pressure.