Poor Fuel MPG

Just drove to Houston to see kids from Miami. 1,200+ mile trip averaging 17.4 mpg. Granted it only saw below 85 mph when pulling in to Buc-ees to refuel.

 

Wow, these are 2.5 gen numbers. Color me surprised for sure. I see the new gen’s on the road quite a bit and imagine they are loving their 22 mpg, but what a terrible assumption!

 

You're getting 5-6 more mpg than me.

 

You have a 1/2 ton pickup with over 400hp. 15.6 mpg is amazing.

 

Just over 2000 miles and I get about 17 around town and 22 on freeway so just about what the EPA estimates. I drive the speed limit and use cruise control regularly. Mine is an SR (so no air dam or grill shutters & the slightly detuned motor), crewmax, shortbed, 4x4. I have stock Land Cruiser First Edition wheels/tires which are identical spec to factory 18” Tundra TRD off-road wheels/tires.

 

Never have had a huge issue with mpg bc I understand it’s a 6k lb truck with the aerodynamics of a barn, but I’ve been looking into my gas mileage recently just out of curiosity.

I was previously getting about 15 mpg on my commute which is 50/50 city highway. 35” e load tires on +0 offset wheels, full skid plate, leveled. I experimented with driving under 80 (I often forget that the speedo is off, so I’d have the speedo at 80). Started driving under 75 (speedo, so real speed is ~80) and started getting ~16.5. Then I’ve been playing around with keeping the speedo under 70-72 and now I’m around 17mpg consistently. Been using ECO the whole time. ECO is pretty bad compared to normal for city driving, but it definitely gets better gas mileage on the highway. I’ve also noticed negligible difference in mpg after getting rid of the air dam. I’m assuming that has a bigger difference the closer your truck is to the ground. I’m sure I could get better mileage with more + offset wheels, but it’s not worth buying a new set just for that. I’d rather spend that money on more trips!

 

I get 19 +/- .5 regularly in my 2024 TRD Offroad with a topper and roof rack and 275/70/18 BFG KO2. Put the tires on at purchase so imagine could be getting 20+ with lighter tires. Got 24+ one time from Leadville to Denver but that is a lot of downhill with one big uphill in the middle. I get 50 miles more range on 6 gallons less fuel than I did in my 2016. This truck handles elevation change so much better than the 2016 it's crazy. Pretty happy overall.

 

Have a 2022 TRD PRO, in city driving getting around 10-12 mpg per tank ... dealership is refusing to investigate and told me its me ... my 2015 Lexus GX460 V8 was getting higher mileage ... I did notice that hybrid battery is always 1/4 full so wondering if its hybrid subsystem not helping

 

Your hybrid system has nothing to do with helping you get better mileage, if it helps improve gas mileage it's because it powered the vehicle in a few situations while the ICE is offline. It's to help with off the line acceleration, especially in towing situations.

 

My 2025 Limited 4x4 CrewMax 5.5 (non-hybrid) has 1,500 miles that so far is meeting the expected (or hoped for) fuel economy and reliability. It' meeting the EPA highway fuel economy rating. On a recent interstate round trip it covered 296.2 miles and used 13.612 gallons from the same pump, for a roundtrip average of 21.76 mpg. The measured number exceeds by a little bit the real time live reading. Interesting that it's understating the range to empty even when the measured average should be indicating more for a 31 gallon capacity. Maybe it's figuring on not running it dry? The city mpg seems better than expected too although I can't be precise about it. I'm easy on it, especially the early miles.

 

Not sure that is accurate ...my battery kicks in my driveway and does not start until RPM's go up/down ... it also constantly helps with assistance when full and not towing anything on Highway ...

 

A couple of ways you can tell this is a helper motor and not a drive motor on our Tundras.

1. No Tundra currently produced has a “EV” button on it as all the other hybrid Toyotas do.

2. The hybrid motor on the Tundra is located between the block and transmission to assist in delivering power and torque. It’s not located in the transaxle like normal hybrids are for Toyota.

You can do some research on it, including Toyotas website, where it’s specifically called out that the i-Force Max is a boost for the engine, especially in towing.

This is further reflected in horsepower and torque numbers when you compare the exact same trim on package on a truck between the i-Force Max and i-Force engine in said truck.