View Single Post
Old 11-26-2012, 10:27 AM   #12 (permalink)
Diesel_Dave
Master EcoModder
 
Diesel_Dave's Avatar
 
Join Date: May 2011
Location: Indiana
Posts: 1,194

White Whale - '07 Dodge Ram 2500 ST Quad Cab 2wd, short bed
Team Cummins
90 day: 37.68 mpg (US)
Thanks: 112
Thanked 511 Times in 213 Posts
Quote:
Originally Posted by slowmover View Post
But how long will they last? The cost-per-mile is high for a number of tire types with 3/4 & 1T pickups due to their weight and intended use. The fuel savings offset may not be there when placed in context.

And I'm not seeing the 113 Load Index as being consistent with GAWR, GVWR or GCWR given a prudent margin (15%) as recommended. It is a good 20% below the 121 tires in load carrying capacity.

The tread design looks great, however. On an SUV that doesn't get much above 6k or that tows up to medium-sized TT's it may be fine.

It's all I'll have to say on this. Your truck and your tires.
GVWR for my truck is 9,000 lbs. If we assume equal distribution, that's 2,250 lbs/tire. 113 Load Index is 2,535 lbs. That's a 13% margin, if I calculated things correctly.

Did I miss something?
__________________
Diesel Dave

My version of energy storage is called "momentum".
My version of regenerative braking is called "bump starting".

1 Year Avg (Every Mile Traveled) = 47.8 mpg

BEST TANK: 2,009.6 mi on 35 gal (57.42 mpg): http://ecomodder.com/forum/showthrea...5-a-26259.html


  Reply With Quote