E Load Rated Tire Pressure
12-04-2011, 07:29 PM
#21
Originally Posted by sled92
I would guess that they are trying to cover their butts. As I said there are bunch of us that have been airing down our 10 ply tires (15- 30 psi) for years with no issues.
Some people actually take their trucks off the pavement. E-rated tires are very puncture resistant compared to the factory "car rated" stock tires. So maybe keep your 'blanket statements' to yourself.
12-04-2011, 08:42 PM
#22
Senior Member
Originally Posted by sled92
I would guess that they are trying to cover their butts. As I said there are bunch of us that have been airing down our 10 ply tires (15- 30 psi) for years with no issues.
Some people actually take their trucks off the pavement. E-rated tires are very puncture resistant compared to the factory "car rated" stock tires. So maybe keep your 'blanket statements' to yourself.
But I wasn't willing to sacrifice my new found appreciation for half ton comfort just yet. If my 6 plys let me down then maybe....
12-04-2011, 09:02 PM
#24
Senior Member
Our local tire guy convinced the maint guy at work at our Chevy Tahoe needs load range E tires because of the "abuse" that it gets. Keep in mind that it usually only has about 300 lbs of equipment in it and on person driving it.
The first time I took this truck down a back country road at 55 mph (35 psi in tires) I thought the tires were gonna roll right off of the rims. To get anything near the stock handling the tires need to be up around 50 psi, at which point it becomes similar to driving a basket ball down the road, bouncing out of every little bump in the road. I could see maybe using a load range C or D (if needed), but an E is way too much.
I have also aired down my tires due to a higher load range and to get better traction off road. I dropped the rears down to about 15 psi in my 97 F150 while the fronts stayed at the stock PSI. I can tell you that after about 5,000 miles, the rear tires were showing much more wear than the front. I have always blamed this on the increased heat generated by lower PSI, but I'm not really sure.
IMHO, if at all possible, stay away from E rated tires on trucks that don't NEED them. They have their place, but it isn't on an F150. If you absolutely have to use them on a F150, I would say they need a minimum of 45-50 PSI to get at least half way safe operation of the truck at anything over 30 mph.
The first time I took this truck down a back country road at 55 mph (35 psi in tires) I thought the tires were gonna roll right off of the rims. To get anything near the stock handling the tires need to be up around 50 psi, at which point it becomes similar to driving a basket ball down the road, bouncing out of every little bump in the road. I could see maybe using a load range C or D (if needed), but an E is way too much.
I have also aired down my tires due to a higher load range and to get better traction off road. I dropped the rears down to about 15 psi in my 97 F150 while the fronts stayed at the stock PSI. I can tell you that after about 5,000 miles, the rear tires were showing much more wear than the front. I have always blamed this on the increased heat generated by lower PSI, but I'm not really sure.
IMHO, if at all possible, stay away from E rated tires on trucks that don't NEED them. They have their place, but it isn't on an F150. If you absolutely have to use them on a F150, I would say they need a minimum of 45-50 PSI to get at least half way safe operation of the truck at anything over 30 mph.
12-04-2011, 09:02 PM
#25
Senior Member
I would guess that they are trying to cover their butts. As I said there are bunch of us that have been airing down our 10 ply tires (15- 30 psi) for years with no issues.
Some people actually take their trucks off the pavement. E-rated tires are very puncture resistant compared to the factory "car rated" stock tires. So maybe keep your 'blanket statements' to yourself.
Some people actually take their trucks off the pavement. E-rated tires are very puncture resistant compared to the factory "car rated" stock tires. So maybe keep your 'blanket statements' to yourself.
12-04-2011, 09:58 PM
#27
Junior Member
Join Date: Oct 2011
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If you want the 10 ply tire you and want it to last, you may want to go to 50psi min. If not you may start another topic in a year talking about how your tires are wearing bad. Yes they are going to be stiffer, thats why they are an E tire not a P tire.
12-04-2011, 10:22 PM
#29
Senior Member
Originally Posted by ftrucktough
Aren't the stock LT tires load range "D"??
E ratings are available on F150's as I mentioned before my neighbor ordered some, much to his regret.
Last edited by dcfluid; 12-04-2011 at 10:42 PM.
12-04-2011, 10:33 PM
#30
Grumpy Old Man
PSI . max load per tire (lbs)
--- . ------------
35 . 1940
40 . 2130
45 . 2310
50 . 2535 max for load range C
55 . 2660
60 . 2825
65 . 3000 max for load range D
70 . 3150
75 . 3305
80 . 3415 max for load range E
