We got over 60k on the stock tires. They just became undesirable in snow and slush. Replaced with Goodyear Eagle F1 A/Ss. No difference in mpg. Massive improvement in traction. Never, ever, rotated tires. You didn't say what your Stock Tires were, but All the Tire Testing I have seen has agreed that Michelin Energy Saver is the best MPG Tire available. Any other tire is going to be less MPG's. https://www.tirerack...eo=45&tab=Tires
Pretty much not diggin' Paul's ideas. I think cross rotating it a serious no-no, as is 50 psi. Perhaps there is some benefit at the risk of DEATH. I'll chill, not rotate, and use the factory psi. This is unfortunately Misinformation. Michelin E/S 93V are rated for 51psi Max Cold and the bursting pressure is around 200psi, no safety risk here. I talked to a Michelin Factory Rep. and explained I was running 50 psi and getting even tire wear. He said they would recommend using 50psi if I was getting even tire wear so I'm going with Michelin's recommendation. As you can see below FORD recommends Cross rotating tires from FFH Manual.
The tire wear I see above has to be an alignment issue. Not an expert, but that is not normal on any modern car. Don't blame the tires, psi, or rotation. Something with the alignment is wrong. More Miss Information Here, Tire pressure and rotation makes a big effect on tire wear as well as alignment. Using my strategy I'm going to get atleast 80k miles out of my Michelin's so extending the life of the tires is worth 30% of the cost of the tires which is a lot money on expensive tires.
From FFH owners Manual: Tire Rotation
Note: If your tires show uneven wear ask an authorized dealer to check for and correct any wheel misalignment, tire imbalance or mechanical problem involved before tire rotation.
Note: Your vehicle may be equipped with a dissimilar spare wheel and tire assembly. A dissimilar spare wheel and tire assembly is defined as a spare wheel and tire assembly that is different in brand, size or appearance from the road tires and wheels. If you have a dissimilar spare wheel and tire assembly it is intended for temporary use only and should not be used in a tire rotation.
Note: After having your tires rotated, inflation pressure must be checked and adjusted to the vehicle requirements.
Rotating your tires at the recommended interval (as indicated in the Scheduled Maintenance chapter) will help your tires wear more evenly, providing better tire performance and longer tire life.
Front-wheel drive and all-wheel vehicles (front tires on the left side of the diagram)