Gas mileage?

I was getting 15-16 miles/gallon with road tires. Switched to Terra Grappler G2 All-Terrain tires and am getting 12-14. When I'm pulling the trailer, I'm getting 6-8.

 

Whatever, im sure you are correct as you were riding with me......you folks argue about shit that is inconsequential like a bunch of librals. I could give fuck all if you believe me, as I was the one paying for the gas. Enjoy your 13-17mpgs, if you want more buy another brand. Peace.

 

You know less than you think.

 

I know enough....for example, I know that a lot of internet-goers who claim to consistently get 22-23mpg with their Chevy v8 1/2 tons are deliberately lying or not smart enough to hand calculate.


Fuelly shows what these vehicles are getting on average...any big-fish tales about much higher mpg's are outliers or fabrications.

 

I’ve got 53k on my 2016 CM 1794 2wd and do 90% city driving. I’m averaging 13.9 to 14.5.

 

Be happy if its above 12!!

 

That’s what I’m learning. But when I stop on the pedal, does it move? Absolutely.

 

By the way, it’s spelt liberal. Just because I was proving my point doesn’t mean you need to get all bent out of shape about it. You didn’t get your way and are throwing a fit like a typical liberal.

 

#fakenews

 

Amen!

#ItsTheTruth

 

I’ll only put it on my truck if it increases my instant fuel mileage.

 

My computer says im getting 12.2 mpg, but im running 35s. 35s are 9.7% larger than stock, so add 9.7% to 12.2 and I’m actually getting 13.4 mpg

 

That math doesn't make sense.

Just measure your miles driven (via GPS, since your odometer is off) and divide that by the # of gallons you put into your fuel tank....simple as that.

 

The math makes perfect sense. I’ve done what you mentioned and get very close to the same results.

 

Increasing your mpg's by 9.7% because your tire size went up by 9.7% makes mathematical sense to you?

I'm interested to see if you can actually prove the logic behind that.

Dividing miles driven by gallons consumed is literally the most accurate way to determine your mpg's...but do what you want.

 

Good thing about mathematics is that it’s allllllll relative. Lol

 

Yes, because my truck thinks it’s traveled 12.2 miles on one gallon when in fact it’s traveled 9.7% farther because of the size of the tire. If my odometer says I’ve traveled 20k miles, that is inaccurate because of my larger tire, unless there’s something i don’t know about Toyota and it’s tracking mileage via gps instead of spin on my tires. That goes for speed too. Your truck might say you’re going 65 mph, but if you have a larger tire then you’re actually going faster.

 

yea shitty ethanol gas hurts hard.. Ive heard the same.. folks running pure fuel on long hauls and regularly using it.. Its just pricier but that gas is just better. I use it on all my ATV's/RTV's and lawn equipment.

 

my father in law has GMC v6. He gets decent mileage only because it cuts down to 4cyl when he gets going steady.. he does regret not getting the v8. But im glad toyota doesnt waste their time with a cut off like that. I'm not the expert but too many engineers says it hurts the engine... switching between cylinders.. especially in a truck when you need the power instantly. As stated, no expert , just restating what i heard, but it makes sense. ------------I work on cyber security software so that's my forte.- not engines.


As @Jeremylee said.. if you run pure fuel.. game changer.

 

What your truck thinks its getting in terms of mpg is a vague estimate, often one that is highly inaccurate.

When you increase your vehicle's tire diameter by x%, you increase its distance traveled by x%. Increasing your dashboard mpg readout by that x% does not accurately account for the changes to your speed (speedometer) or distance traveled (odometer). It just doesn't.

Determine your miles driven (use a 3rd party GPS or Google Maps) and divide that by the gallons consumed (derived from the pump); that yields an accurate mpg.

Or get your speedometer and odometer re-calibrated for the bigger tire size.

 

Like I said in a previous post, I have used both methods; the one you’re talking about and trusting the calculation on the truck. Both were very similar after applying the math. I can’t speak for other trucks, but on my truck the calculation is very close to accurate. Here’s some history as well. Prior to upgrades, I was averaging over 14mpg. I lifted it along with 33s and those numbers dropped to 13.8mpg using the math. Just added 35s and my mpg has dropped more to 13.4 and my numbers would be worse but I’ve changed my driving habits since adding the 35s.

 

Well it may be coincidental that your numbers match up when cross-checked with hand calculations.

I'm just noting that increasing your estimated mpg's by the same percent by which your tire size was increased does not make mathematical sense. I think people will normally increase their odometer readout by that percent, but even then it's not going to be 100% accurate.

 

Why all the doom and gloom about mileage .... i'm getting 4 mpg better with my Tundra than my last vehicle (2004 GMC 2500HD 4x4)
Hell I'm ecstatic about the mileage.

 

Good back and forth conversation bud. Please note I’ve said similar and very close to accurate which do not equal accurate, but the numbers after calculating off the trip meter are very close and are good enough to report on that. If they were off by even 1 mpg then that would be too much and I would then deem the truck meter off by a lot, but that is not the case here. The numbers are very close and it’s not a coincidence.

 

I have a question concerning all of the gas MPG differences among folks here. Everyone says tire size matters. How much in the various stock options? Some CM Tundras come with 255/70/18 as stock. Another might have have 275/65/18 as stock. Are both of these stock tire differences enough to account for the differing MPG among those two trucks?

 

Increasing your mpg readout by the same % by which your tire size increases is not an accurate way to determine mpg's. Nor is there any mathematical basis for that method.

I'm just being honest with you....take it or leave it.

 

I totally disagree with you on that and the argument supports it, but it is what it is.

 

I didn’t know tundras came in different 18” size tires. Whatever your truck came out of the dealer with brand new is what the manufacturer calibrated it for unless they customized it and didn’t calibrate afterwards.