2012 Tacmoa Question

Hello everyone,

I have a 2012 Tacoma TRD Off Road 4.0 V6 4x4 Tacoma with about 22K miles on it. I bought the truck brand new and its completely stock except for the new tires I just had put on, which brings me to my problem: since having the tires installed I've notice a significant decrease in fuel mileage. The tires I put on are the new BFG all terrain KO2's and the are the stock size. Whats also happening is when I'm on the interstate with the cruise set it's kicking it out of overdrive when I go over overpasses, which is incredibly annoying. Now I know that I increased my rolling mass when I put those more aggressive heavier tires on but damn I didnt think it would be that bad. Any tips, suggestions or ideas for some simple mods that would help it out some?

 

What is the load rating on your KO2s (C, D, or E)? What tire pressure are you running?

 

I'd start with checking inflation pressure. What (exact brand and model of) tire DID you have? (and what inflation pressure did you run previously?) More aggressive tread tires will use more fuel. Heavier tires burn more fuel. KO2's aren't exactly "aggressive", but compared to a passenger car tire, maybe so. Also, Define "significant decrease" in terms of actual mileage (before and after).

 

Nothing really you can do because they are very heavy tires. I noticed a difference going from Dunlops to my terra grapplers but not as drastic as you. The Dunlops had a lot less drag when I came off the pedal and the Nittos are not as aggressive as the BFs. Both tires are P rated and the same size but I still lost about a 1/2 mile per gallon.

 

Well I feel kind of silly for not checking the air pressures first because I assumed that the tire place would have done that correctly. I checked them cold and the pressure were at 27 psi. I had them put on a week and half ago and just assumed that a tire shop would properly inflate new tires that were just installed. The size of the tires are 265 75 R16 and they are E rated.