P Rated All terrain Tires vs P Rated Light Weight Rugged Terrains for Best Fuel Economy?

[ggrjordan]

Hi guys! I know it’s obvious that a lighter at tire will be the best option for fuel economy given the weight and tread pattern, than the rugged terrain. But here’s my specific case. Just wanted to hear your opinions:

I currently have 31” Mud Terrains that weigh 39.5lbs (so 58lbs total weight per corner with the wheel which is 18.5lbs). The two options I’m considering are an AT that weighs 24lbs with a street focused tread pattern, or an RT of I think a weight of 29-32ish lbs (could be the the same weight as the AT but I didn’t weight this one, just felt it) with a very similar tread pattern to the nitto ridge grappler.

Will there be a noticeable difference in fuel economy between the two?

How noticeable will the difference be going from 58lbs to 42.5lbs with the AT tire vs going from 58lbs to say 48.5lbs with the RTs?

I overland a lot and also like to offroad moderate to light trails a lot.

I left pictures of the tires below.

Thank you all.

Jeep liberty kj 2002 limited
4:10 gears
Twin locked with Spartans
Ironman 1.5” lift kit
31” mud tires

 

[HoosierJeeper]

Makes a huge difference - rotational mass has like a 4x factor. So 10 pounds of rotational mass is like 40 pounds of mass in the Jeep. Multiply that by 4 wheels, an extra 160 pounds. Check out the Toyo Open Country AT3, very light weight tire but does great on and off road. Same with Nitto Terra Grapplers and Recon grapplers. Balance nicely too.

 

[mercdudecbr600]

I think Toyos in the 245/75/16 size are something like 37# https://www.tirerack.com/tires/tire...TR6OCAT3&vehicleSearch=false&fromCompare1=yes
So pretty heavy.

Depends on how severe your offroading is. The more serious, the better the tire needs to be. But, if you're looking for a do-it-all tire, I'd highly recommend Firestone Destination A/T2 -- they come factory on Cherokee Trailhawks. https://www.tirerack.com/tires/tire...6DAT2OWL&vehicleSearch=false&fromCompare1=yes

If you want an almost BFG K02, get the Firestone Destination XT. LT tire at #39.

https://www.tirerack.com/tires/tires.jsp?tireMake=Firestone&tireModel=Destination+X%2FT&partnum=475SR6DXT&vehicleSearch=false&fromCompare1=yes

IMO, the biggest indicator of good A/T tires is the siping - most A/T tires with 3P rating only have siping that goes through 50% of the tread block. Which means, you guessed it, they're only good for about the first 1/2 of the tire. This happened to me with the Cooper Discovers.

 

[mercdudecbr600]

Oh and the Firestone AT2's deliver good fuel economy, noise, grip, etc. I got a set of 5 all road force balanced under 20#.

I've done hills, dirt, sand, snow, water, ice and thousands of miles of hwy driving on these tires - they do it all well. If you need more offroad chops, get the XT's.