Gas Mileage not what I hoped ....

No mention of aerodynamics.

 

So explain how a heavier vehicle would get better mileage then the lighter going the same speed on the same road side by side?

 

Why?

 

I belive someone else mentioned this but there are many variables. Where you live is also huge, for example here in the northeast we have plenty of hilly terrian, snow so most Tacos are 4x4 and we definelty use it for days at a time, and idling in cold weather kills fuel as we all know. Factor in lifts and larger tires etc. and thats another couple mpgs. All these guys seeing 19mpgs in there trucks wont see that in the NE. I calculate mine with Fuelly.com and its freaking bad, not as bad as my old Ram 2500 but still. I am seeing 14.8mpgs average but thats all city, lift, Durtracs, 4x4 being used often, carry loads, and lots of cold weather idling. Thats my average but i have had a few tank averages of 12mpgs. I dont drive it like I stole it either, just lots of stop and go. My father has a 2011 Access cab TRD TXPro and he does a bit better like 17mpgs. In the warmer months I can see 15ish mpgs so bottom line these motors are not fuel efficient but atleast they last. A buddy of mine has a 2012 FJ Trail Teams and he sees 16-17mpgs with a lift, probably due to the dual valve timing in those motors over our single VVT.

 

It takes more power to move heavier objects...

 

Yes, but if those heavier objects have a more efficient engine, then they use less go juice to move. An old chevy 350 is about 10% efficient. 90% of the energy in the fuel is wasted in heat, friction, etc. The 1GR-fe is a little better, maybe 15% of the fuel is actually used to move you forward. The modern turbo diesel is more efficient than that, at about 20%. Of course, you can raise or lower that percentage with your skinny pedal, type of fuel, elevation, terrain, load, etc. The long and the short of it is that Toyota has sacrificed efficiency for reliablility IMO. These motors run 10:1 AFR....that makes engines last a long time, but sheit mileage...

 

Over Christmas I went on a nice road trip and put 11210.1 km (6965.6 miles) on the Tacoma. I averaged 14.7 L/100km (16.0 MPG) for the entire trip, could of been better if I followed speed limits and didn't idle for many hours (gas is cheaper than hotels). 4x4 was used about 15% of the time, and that's when I got my best per tank numbers as speeds where down due to the road conditions. I also carried about 400lbs of stuff in the bed there and 300lbs back.

 

The wife has a '11 DCSB OR 2wd Pre-runner, I have a '13 DCSB OR 4x4.
Both are bone stock. I've never done the math and figured out mpg's, but I can tell you that on road trips that we've repeatedly taken to the same destinations, the 4x4 definitely gets better mileage. The Pre-runner seems to have more "pep", but the 4x4 gets better mileage...weird.

 

I average 16-17 around town in my 2013 DCSB Sport 4x4 Auto. The best I have seen was 21 on my trip from Nebraska to Georgia with the cruise control set at 70.

 

EPA gives them essentially the same rating.


prerunner 17/18/21
4wd 16/18/21

 

Tundra is way worse MPG, not sure about anyone else but I didn't buy my truck to help save the ozone

 

i got 18 combined on the first tank in my '14 dbl cab, 4x4, auto starting with 2 miles on the odometer.

i was only getting 18 combined in my '03 S10 two seater w/ 4.3L, 2WD, std cab & auto.

 

You create ozone with vehicle pollution, what are you talking about?

 

How people complain about trucks MPG, they are used for work, hauling things and recreational use. Want good mileage go buy a hybrid. I understand combustible engines create pollution. It's like someone bitching about their boat using too much gas. It's a boat it's for fun and has a lot of load on it forcing through water.

 

It is mostly about driving habits. Lift and tires can also contribute to lower MPG. I have a standard and have gotten over 24 MPG.

 

X2 on this...

I do not drive my truck gently. I don't floor it every time, but I also don't baby it. Therefore, I am getting the MPGs that the window sticker said I would.

Also, depending on how I would drive it, I got as low as 10 MPG in my Subaru WRX, or as high as 20, both in the city. 10 MPG when I launched away from every light, and 20 MPG when I stayed out of boost.

Driving style is the biggest contribution to fuel efficiency.

 

Been tracking the mileage on my truck since I bought it new a year and a half ago. Now have 43K miles on it. Looks like it doesn't like winter.

 

Nice graph, but it looks like you are a 2WD...? Good mileage except next to last fill up... that looks more like the rest of us in heavy city or off road 4x4 driving!

 

I am 4WD; I'm thinkin' that's one reason for the lower values in winter.

The next to last value 13.75 is my lowest, and my last fillup @15.54 is my 2nd lowest. The majority of my 43K is hwy, but my miles for the past 2 fillups were a lot of just putzing around town and/or using 4WD for snow. I'm hopeful that they'll shoot back up to the 18-21 range on my next roadtrip....we'll see...if they don't, then there's something that's gone way wrong recently.

Paul

 

It is fantastic you get over 20 mpg in a 4WD double cab automatic... don't change a thing... and keep using whatever gasoline is doing that. Nothing wrong with you last two figures, as that is NORMAL for those last two conditions... Low range 4WD will drop you closer to 10 mpg.