A positive MPG thread

I have a 4x4 TRD Off-Road with the factory TRD 3" lift and I'm getting average 17mpg with 60/40 city/highway. Everything is stock. I'm not too surprised given the lift and the speed limit on the highways here 65-70MPH. Way more power and better MPG than my 2nd gen Tacoma, so no complaints here.

 

I'm getting 13 mpg - must be something wrong with my truck. Just kidding - turbos go whoosh.

 

People buy a full size truck with twin turbo and STILL post all over Facebook that their Prius gets better mileage

 

I don't own my truck for the mileage, but it has been a pleasant surprise compared to my 2015 Tundra. 50-60 mph seems to be the sweet spot for MPG. I routinely get 21-23 mpg at that speed. It drops to 17-19 mpg at interstate speeds.

Perhaps my favorite feature is the additional range on a full tank that I get with my '23. 500+ miles of range compared to around 300 in my 2015 is a huge difference on long road trips.

Thanks, OP, for a positive thread for a change.

 

My problem with gas mileage is I love the way this truck feels when it accelerates. If I just go I can get 19-21 any given day….. the acceleration is to fun to not play with.

 

First tank of gas , all around town no highway - averaging 14.5 MPG , i look forward to seeing 23 at any point lol

 

The factory lift looks a little awkward because Toyota kept the OE wheel/tire sizes. Sometimes I regret getting one with the lift because of the MPG hit (from my research 1-1.5MPG) but then I think about getting the “right” size tires next and then I’d want the lift right back.

Shoot what you brought.

 

Are you thinking of getting larger tires then? Both a lift and larger diameter tires are going to lift the truck and therefore increase the wind resistance. As far as the gearing with the taller tires, I don't know but I suspect Toyota geared it with that tire diameter, so I suspect the mpg would suffer from that as well, but then again the argument goes it will just stay in a lower gear, so I don't know.

 

Yes, larger tires once the stock ones need replacing. I had a lifted Tacoma with 33s before this Tundra. At the end of the day I like the extra clearance and the look, but I was just pointing out that the lift without the larger tires makes the truck look goofy and perhaps not worth the MPG hit. Once I get a fitting set of tires on the truck, the MPG hit will be worth it. Still getting better MPGs out of the lifted Tundra than I did in the Tacoma.

 

Depends on who is driving--me or wife; she uses the throttle more aggressively than I do. However, thru 10311 miles, our total fuel consumption was 503 gallons, or 20.499 mpg. That includes a 362 mile section with 14.8 gallons (24.46 mpg) and a 223 mile section with 13.7 gallons (16.28 mpg). It is a 2wd, not lifted, stock tires; high mpg was on interstate and 75 mph, low mileage was around town, stop and go traffic--and we are very satisfied with it.

 

So not wanting to sift through all the past posts on this subject, does anyone have good data on the difference in mpg with taller tires or a lift? Rolling resistance with different tires, especially MT's vs. street tires makes a huge difference as well, which is the typical change from stock to a lifted config, but I'm wondering about the change in wind resistance.

 

The aero force is proportional to V^2. The power to overcome aero drag for a moving vehicle is proportional to V^3 (with no wind). If engine efficiency is assumed constant, then fuel consumption per distance to overcome aero drag would go up by V^2.

The other main component is tire hysteresis (rolling resistance), but since this force is approximately a constant, the fuel consumption per distance to overcome this component is also a constant.

Rolling resistance dominates at low speeds, and aero drag at high speeds.

Going up and down hills can make a big difference too... especially if they are steep.