Tires - Load Range D vs E
My trailer uses 225/75R15 load range D tires. Checked my local tire stores and all of them only had load range E tires in stock. One of the guys tried to push me into getting load range E because "the...
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E tires have a another belt ?? Never heard that one.
Our modern radial ST and LT C/D/E/F/G highway (not a off road tire) tires all usually have two carcass plies and two usually steel tread belts. The P tire usually has one carcass ply.
This happened to one poster who thought bigger tires on the trailer and then derate them with low pressures is better so go big.
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Posted: 04/27/17 08:01am Link | Quote | Print | Notify Moderator
When it came time for me to replace our tires, I researched many different ways to go. I wound up purchasing 17.5" J rated medium duty truck tires and wheels. When all done and said, it was $5.00 per wheel and tire combo more than just replaceing the 16" tires. This tire and wheel combo is good for 6005 pounds each. Using the inflation chart to get the pressure for the load, I inflated to 80 psi which was good for 4500 pounds per tire. With the first tow with these tires to Kansas City, I have made this trip to the speedway several times before, I was down almost 2 mpg both ways. The tires were 20*-25* hotter than the truck, which I have never wxperienced before. I inflated them to the side wall pressure, 125 psi for max load, before our trip to Florida. Now the tires run 5*-10* cooler than the truck and my fuel mileage is back where it used to be. I have always run max pressure up until I installed these tires, with what I have experienced, I will continue to run what the side wall indicates.**
Our modern radial ST and LT C/D/E/F/G highway (not a off road tire) tires all usually have two carcass plies and two usually steel tread belts. The P tire usually has one carcass ply.
This happened to one poster who thought bigger tires on the trailer and then derate them with low pressures is better so go big.
**Offline
Posted: 04/27/17 08:01am Link | Quote | Print | Notify Moderator
When it came time for me to replace our tires, I researched many different ways to go. I wound up purchasing 17.5" J rated medium duty truck tires and wheels. When all done and said, it was $5.00 per wheel and tire combo more than just replaceing the 16" tires. This tire and wheel combo is good for 6005 pounds each. Using the inflation chart to get the pressure for the load, I inflated to 80 psi which was good for 4500 pounds per tire. With the first tow with these tires to Kansas City, I have made this trip to the speedway several times before, I was down almost 2 mpg both ways. The tires were 20*-25* hotter than the truck, which I have never wxperienced before. I inflated them to the side wall pressure, 125 psi for max load, before our trip to Florida. Now the tires run 5*-10* cooler than the truck and my fuel mileage is back where it used to be. I have always run max pressure up until I installed these tires, with what I have experienced, I will continue to run what the side wall indicates.**
