14.7 MPG Highway - 17.7 MPG City....How??

just took the Taco on a 9 hour drive to and from KY and averaged 14.7 MPG averaging around 70-75 for the whole trip. My typical MPG driving around town is 17.7. How is that even possible? I know the fuel efficiency of the Tacoma is not one of its finest qualities but 14.7 MPG highway is ridiculous. I could get better gas mileage out of a full size truck with a V8.

 

Sounds like your truck never got past 4th gear

 

Double count a fuel receipt when doing miles / gallons?

Trailer or no?

 

Did you accidentally put it in S mode and drive in 4th the whole time?

I'm lifted, on 33s and have a plate bumper and sliders and I still get 17-18 freeway depending on what gas I use.

 

Try driving on the highway going 55.

 

This?

https://www.tacomaworld.com/threads...ion-tsb-0062-18.559435/page-144#post-19269428

 

That’s pretty bad. What size tires and how much added weight to the truck?

I just drove 200 miles yesterday with ECT on and averaged 20.1mpg. I drove 1200 miles from Colorado to Texas in November while pulling a pop up camper and averaged 16.5-17 mpg.

This is with the latest TSB, stock wheel/tires/suspension, a front skid, sliders and a leer topper.

 

That too. Taco is pretty sensitive to winter gas for some reason.

 

what MPG robbing Mods have you put on the truck?https://www.66batmania.com/blog/wp-content/uploads/2016/03/riddlepic.gif

 

It's not the most aerodynamic truck and it doesn't have the power to chug along at 75mph at low RPMs.

 

To answer your question it's because you've added weight to your truck. front and rear bumper, skids, sliders, and tires adds up real quick.

https://www.tacomaworld.com/threads/the-soccermom-build-17-mgm-dcsb.461385/

 

Nice find...


Yep, all the added the weight and doing 70-75mph will tank your mpgs.

 

Awesome screen name + awesome Jane doe AV

 

That’s what I’m thinking

 

Yeah I get it but why would I get so much worse. I can deal with 17-18 on the highway like I get during city driving. 12-14 is pushing my tolerance

 

Could be winter gas, added methanol?

Whichever the case, I just drove back 150 miles ftom NY with a load of furniture. It had some really bad wind drag so I averaged about 13.5 mpg and about 60-70 mph whole way.

 

Take it down to 60-65 and see if it's better. That's what I do and I'm lifted with sliders and average about 21 mpgs on the highway. Anything over 65mph and it drops like a stone.

Winter gas I'm in the 18-19 mpgs.

 

Wish I had read these forums BEFORE buying mine.
Could have gotten a fullsize Chevy with a 5.3 V8 and done WAY better on gas and available power

 

From equipment list, it looks like your truck is raised and has a roof rack. Doesn't help aero. Here is my fuel consumption since I bought the truck a year ago. Mine is a manual transmission and I have wheels that lift the truck 25mm and weigh 35 kg per corner.

 

You modded your truck, we have winter gasl now, your going 70-75.

Think about this for a second. Seriously not trying to sound like an asshole....