1995.5 Tacoma MPG

I am running 31x10.50r15 with Bilstein 5100 adjustables with Eibach coils and my mpg is like 20. I have the 3.5l too if that helps. I was just wondering if anyone has a 3.4 1st gen and running 33x10.50? That's what I want to run but its my DD so I wanna know how bad itll be. Thanks.

 

is going to drop down into the mid teens...
unless you plan on changing the axle gears.

a 2" height difference is purdy substantial
and lets not forget the added tire weight neither.

A tall skinny tire helps reduce the rolling friction tho'

btw... yer speedo/ODO will be way off... (unless corrected)
and you will need a gps to determine your true fuel mileage.

 

Just multiply the trip by the percentage off (how much bigger the tires are)

 

I have a 98 3.4, 5 speed. 32x9.5. I get 20mpg. 2" lift. That's with the Topper on to.

 

There are LOTS of threads on fuel mileage, btw...

I get maybe 17-18 with my 2004 auto 3.4L DC running 265/75's. If you're already getting 20, you're either over estimating, or you drive like a grandma.

I wouldn't expect much better that 15 with 33's.

What's your commute like? if it's a mile or two, you probably won't notice much (except your tires rubbing, lol), but if you're running 30+ miles in each direction, expect another tank or 2 a month!

 

I'm no math genius... but I'd probably have to question that method used.

You mean:
Measuring the percentage difference of the tire's rolling distance
compared to the shorter tire's rolling distance ? (Tire Revolutions Per Mile)

I'm not so sure that the tire height difference, stand alone
is an accurate method for determining accurate TRPM -/+ % changes.

I'd think the wheel's width and tire psi could alter the tires true rolling distance.
So those are factors I'd think would need be considered/accounted for ?

I'd suspect one could use the tire height estimation -/+ % difference
and get the MPG fairly close... but probably not spot on.

Feel free to correct me if I've got it all wrong.

 

No need for it be that accurate. i dont even think alot of the oems go as far as taking into account tire psi/deflection.

 

...I'll agree

I'm just irritated by folk generating false readings of their fuel consumption.

Straight off the factory assembly line
most vehicles are about 3 - 5 % wrong from the get go.

So equate that into your math.

Likely how the Mfgr's deceive the public with their lower fuel consumption claims.

And likely why the LEO's rarily enforce the speed limit laws
if a suspect were traveling 4 - 5 MPH over the speed limit posted.

That said...
My 4.88 axle gearing along with my Dakota Digital SS processor
has my true speed/ODO spot on. (verified by GPS)

Tho' I honestly don't really care what my fuel consumption is.
I'm more interested in my actual speed and the ODO accuracy.

My fuel consumption is not terrible mind you... but it is what it is.
Taller tires and added weight will do that.

For a more miserly fuel consumption...
I drive my DD '10 Corolla instead.

If one wants their Tacoma to be close to what the mfgr claims...
better not install taller tires on it... for starters.

 

I agree they are not that accurate. Especially after tire change. I check mine and 20mpg being the highest. Realistically I assume it's probably 17. I range from 17 - 20 using the trip meter.