Load Range E instead of C?

I am probably going to be banned for all these questions regarding tires, but I have another one...

I decided on the Duratrac LT265/75/16 Load Range C and had them ordered in yesterday ($202 per tire with a $40 rebate on 4 tires). The Duratracs showed up at the garage today and I went and looked at them and found that they were Load Range E. The service guy said he would sell them to me for the same price as the Load Range C's. So now I am wondering if the Load Range E's would cost me too many MPG's or is there a significant difference in the MPG drop from the C's to the E's? What would you do? Load range C's are on back order until December.

Thanks

 

What it's the weight difference per tire between the 6 plys you ordered and 10 ply they are offering?

 

I think the Load Range C is around 45 and E's are 51lbs according to TireRack. I specifically bought Load C as E's are heavy for occasional off road use only. Plus if I was going E's, I would have given the new KO2's a try. I don't know less of mileage will be impacted but there will be an impact.

 

Went from stock 265 (TRD offroad) rugged terrains to 285 Tracs load E and my MPG went down by 1-2 max.

 

6lbs according to this chart http://tire-size-conversion.com/tires/Goodyear/Wrangler-DuraTrac.htm

 

Those mofo's are heavy. You will pay at the pump if you take the E's. Overkill for our truck imho.

 

Totally different from my experience. With 285/70R17 Load D being 54lbs, my average mpg was anywhere between 14-16 about 60/40 driving. Best I can get on the highway was 20 according to my ultragauge and that is going 60 mph.

 

The answer is yes, you will see a decrease in mileage. How much I don't know. Heavier tires impact acceleration, braking, and mileage. Because the tires rotate (rotational inertia), the impact on braking, acceleration, and mileage for six additional pounds additional per tire is something like 12 or 18 lbs per corner. Smarter people than me will need to do the actual math.

 

Right, though I believe the rule of thumb is rotational mass it equivalent to multiplying weight by 4, so 24lbs per corner. Heavy tires also affect suspension performance due to greater unsprung weight (though you won't notice in a truck).

OP: You made the right educated tire choice by choosing C-load. Our trucks are to light to justify an E-load tire. The tire shop messed up and is trying to unload what they ordered instead of what you wanted. I would tell them no, I ordered C-load for a reason, don't settle. You should not be charged for their mistake.

 

I do wish the ko2's came in load c. I have ran d's for my last 4 sets love the ko and ko2 just wish I could shed a few more pounds for the pump

 

I have KO2 in C rated at discount tire in a 265/70/17 flavor waiting for me.

What size are you wanting to run?

 

http://www.bfgoodrichtires.com/tire...es/all-terrain-t-a-ko2/tire-details#techspecs

 

Wait they make them in c? I was told on my first set they only come In d but that was ko's. It's to late now I got a fresh set of 235/85r16 ko2's on now..

 

Only a few select sizes come with C as an option.

 

With that pizza cutter odd size I only show E rated tires from companies as an option.

 

Yes as stated above a few sizes are c just none that I would want. Love the new ko2 look by the way.

 

Take the load E tires. You won't see a noticeable difference. I gained MPG when I went to 255 (33") load E

 

So a stiffer, heavier tire that will indeed negatively impact the MPG and ride quality is no noticeable difference?
You have a very misinformed statement..

 

Rotational inertia works in favor of mpg while rolling. A stiffer tire has less rolling resistance. These are good on road (mpg) characteristics. Read the rest of my above statement. I gained about 1.5 average MPG.

 

Always boggled the mind how 1 out of 10 people would claim there bigger heavier tire HELPED there has mileage. I lost about 2 mpg just going from 245 to 265/75r16