BFG KO2 (E) vs Falken Wildpeak A/T3W (P) 265/75R16

Anybody gone from 265/75R16 BFG KO2 E rated to 265/75R16 Falken wildpeak A/T3W P rated? Is there any significant gain in power and mpg to justify making the swap? I'm currently running KO2 265/75R16 E but am seriously considering going to the P rated Wildpeak in hopes of gaining some mpg and power. I don't recall how the truck felt with stock tires as I swapped them out with only 400 miles on the truck. Any feedback is greatly appreciated.

 

You will gain something back, its hard to say how much. Are you in need of tires? Then I say do it, you won't lose anything. But I wouldn't make the switch if your BFGs still have life left in them

 

Also interested! I figure you’re asking about gaining as much as I’m about to lose.
I’m about to pick up the Falken A/T3 255/85/16 E in place of stock. An increase of 23.2 lbs unsprung weight (5.8lbs per corner), but an inch narrower. Curious to see if I’ll lose much in the way of acceleration/mpg.

 

Well, just to give you an idea...On my stock TRD Sport I averaged about 24 mpg. 265/65r17 Firestone destination LE2s. I pulled them off at 60k miles with 4/32nds left on them. I replaced them with 265/70r17s BFG TAKO2s C rated, and gas mileage dropped to 19.8 (hand calculated taking into account the +3.5% increase in size). 2500 miles later I was complaining to someone at work about the higher then expected mpg drop and and offered me cash for them. So I bought and put on P265/65r17 Toyo AT2s, and gas mileage has been sitting around 22 mpg.

Idk if this info helps at all. I drive the same 80 mile round trip to work every day 50% country roads, 50% interstate so my mpg is little higher then most but gives a pretty controlled environment for testing mpg.

As far as acceleration/power is concerned, theres not much difference. You'll notice a little bit of loss, but your shift points change and youll run an overall higher RPMs (which contributes to a loss of mpg). These trucks do well power wise in the higher RPM range

 

Yes that does help answer my question. Thank you!

 

So, based on the weights (from the manufacters) of the 3 tires you ran and given MPG numbers you hand calculated, you lost approx. 1.5 MPG to every 2 lbs of additional unsprung weight (per tire).
Now obviously the specific build, tread design heat dispation etc from each tire would come into play too. But, it’s close.

 

Thats some good info, and may be a good general rule of thumb, but like you mentioned, rolling resistance plays a big roll in MPG as well. I feel like the extra inch diameter of the BFGs contributes as well, but I've have too many beers and can not think of any reason at the moment as to why overall diameter would effect mpg other then an inevitable increase in weight.

It was a rough monday, don't judge me.