[gumby79]

Originally Posted by oldtamiyaphile

Even temperatures = even wear (~65PSI):

Is there feathering or cupping on the front ? Hot /cold wear pattern to match the color shift pattern on the sholder . May not be visable but rub it with a flat hand you should feal it .
Do you run the same air front and rear ?
What were tbe conditions for the IR shots .

Fronts look nice and consistent. The hoter carcass ( the part of the tire with the cords/belts/bead)is were the flex/heat generation is occurring the tread is like a cooling fin on an Aluminum heat sink for the carcass when strong forces are not applied as in eco driving. My stripes were 10°f hotter than tread 125-120° f 2° c delta and 1"up the side wall was 20 less than tread. On new sticker tires@60 psi1/4 "of sholder off the ground . With 2500lbs axle weight

the rear is center hot. EG too much air . im not complaining it works . You have proved that 2°f delta good work 3-5 psi down in the rear may improve tire life. And or balince the temp. The yellow makes a fast shift to red 1/4" out into the sholder block. Then there is a small sliver of outer sholder were the tread gives way to the carcass showing yellow hot. This is the sholder tread block lifting off the road(less tread block heat production)
---

I lost 20,000mi worth of tread when a deer jumped me @80 mph . I had the air up@80per door tag ,for towing the day before, the only time I run 80psi . So it only burned out the center. I went back and mesured the skid marks 3" wide from a 7.5" tire( less than 50% had enough contact to leave a mark)resulting in a flat spot in the center 3of 5 tread grooves that only went thump,thump when over 65psi. Till the tire wore down to aproxamitly 20k left then it would thump at any pressure that was safe, to much to handle on the front. As it was I put 75k on a set of 40k tires with recepts and fule log to back it up. Les Swabs said I owed them money on the milage warranty when they sold me a the new tires last monday.