Toyota Tundra Gas Mileage--what do you get???

My question re: LT tires was off topic... sorry 'bout that. LT tires are heavier (for the same tire), so they affect mpg by adding rotational mass. A low resistance LT tire can still have similar or better economy than an all-terrain style p-metric though.

Sorry...did not mean to sound sarcastic. I do realize that they will add some rotational weight and therefore negatively affect gas mileage. I just was curious about how much....

I keep records for mpg for every fill and mileage to date mpg so the numbers are correct. I get 15.5 running around and 8 mpg pulling a 8,000 travel trailer. Just started using plus and it looks like I will get about 1/2 mpg more but need a few more tanks to be sure.
Hope this helps and I have 7,800 miles on a 2014.
RV Jim

music69 wrote:

CaLBaR wrote:
I would not be looking at a 3/4 ton truck. The Tundra does just fine with my trailer so no sense going bigger. Did put LT tires on when I changed but kind of regret that right now. Don't really think it was worth the extra money.

I'd like to hear more about the tire experience too. Is towing w/ the LT tires any better?

I went to the LT tires because I do tow the trailer on some long distance trips such as Ontario to Florida and some 500 - 600km trips around the province. Everything I read said that towing would be more stable. I found the Tundra a very stable platform for towing even with the OEM BF Goodrich P-metric tires. In the 2 years towing with the LT tires, cross winds, head winds, trucks going by I don't really see the difference. The Tundra is as stable as it was before, no better no worse. I don't find the ride too much stiffer either. I put on Michelin M/S 2 LTs. From my perspective and after towing with the LTs for about 8000 km, I would not pay the extra next time around. Maybe it is just that the Tundra is more stable than other TVs from the factory that the LTs did not make a significant difference, at least from my perspective. And I have them inflated per Michelin at 55 PSI and go to 60 when towing. Others may have noticed a difference but not from my experience anyway.

6mpg to 12mpg towing my RV @ 65mph ... 13mph to 19mph mixed city/highway. If I drive with the instant MPG turned on the dash and the Garmin driving coach on ... I can regularly pull out 19mpg.

CaLBaR wrote:
I went to the LT tires because I do tow the trailer on some long distance trips such as Ontario to Florida and some 500 - 600km trips around the province. Everything I read said that towing would be more stable. I found the Tundra a very stable platform for towing even with the OEM BF Goodrich P-metric tires. In the 2 years towing with the LT tires, cross winds, head winds, trucks going by I don't really see the difference. The Tundra is as stable as it was before, no better no worse. I don't find the ride too much stiffer either. I put on Michelin M/S 2 LTs. From my perspective and after towing with the LTs for about 8000 km, I would not pay the extra next time around. Maybe it is just that the Tundra is more stable than other TVs from the factory that the LTs did not make a significant difference, at least from my perspective. And I have them inflated per Michelin at 55 PSI and go to 60 when towing. Others may have noticed a difference but not from my experience anyway.

Thanks for the summary of your experience. I'm not sure that LT tires really help with "stability", so much, as with that wallowing feeling you can get on a softer tire. It's mostly independent of the vehicle. You can rock on a truck w/ most p tires (one hand pushing on bed) and get the tires rolling around pretty good. Can't do it as easily w/ LT tires, but it still moves around some. Stability (i.e., the trailer not wagging the truck) is more a function of tongue weight and distribution (by my experience). I haven't put LT tires on a 1500 before, but I was considering it next time... thus me asking. Good to hear first hand comparisons.

One of the other advantages to the LT tire is they have a higher load rating.