Gas mileage: 2WD vs AUTO mode

[nnorton44]

Is there any difference in MPG between using 2WD and the AUTO mode?

[naladude911]

yes, auto is around like 13 MPG, and 2wd is around 17. AUTO should only be used during snow, or other slippery weather when you are not stuck

[fueler]

damn nala you get good mileage. Mine is like 13 in 2wd and less than 10 in 4wd.

[naladude911]

I do have a magnaflow on tho lol

[Buzzman]

Mine is like 13 in 2wd and less than 10 in 4wd.

Holy crap Fueler, that's pretty bad.I've converted my litres/100KMS into U.S MPG's, and turns out I get around 16-17 combined city/highway. I'll hit 20 MPG's on a long freeway trip. It drops a little in our winters because I let it idle more, and I run AWD more, but I've never gotten below 10 MPG's. Maybe your right shoe is too heavy?

[slickroger]

its winter and I keep track of my fuel in an app that Empty V informed me of gas cubby. I pretty much drive in 2wd all the time.

Americans

Canadians

[Densetsu]

I never really noticed that drastic of a difference. Maybe 1 MPG, if that, can be attributed to auto vs. 2wd. Certainly not 17MPG -> 13MPG just because of the transfer case setting. That's crazy, a 25% difference. I admit, in the winters I use auto and usually go from 19MPG to 15MPG -- mixed driving -- but there are other things in play:

1. Winter gas blends. I think this has the most impact, because in November all of the sudden my fuel economy will drop 2 - 3 MPG, and all of the sudden it goes back up in April. Regardless of (a) ambient temperature and (b) road conditions (that is, my use of auto vs 2wd)

2. Low ambient temperature. The engine takes longer to warm up, and thus longer to reach optimum operating temperature. This is especially noticeable under -25C / -13F. Doesn't make too much of a difference above that, especially when you park in a garage and/or otherwise keep your engine warm (e.g. grouping a bunch of trips together, instead of spreading them out and letting your engine cool down between them).

3. Auto 4wd. Honestly, I don't really notice this at all. It can be so bad here that there are times when I drive whole tanks in 4Hi, and notice a drop in fuel economy. Not so when I leave it in auto.

Maybe in the summer I'll run a tank in auto and see if there's a difference. I honestly don't think there will be much of one, though.

[sc2nr]

its winter and I keep track of my fuel in an app that Empty V informed me of gas cubby. I pretty much drive in 2wd all the time.

Americans

Canadians

I was looking for this app to have on my BB storm, no go...developers say maybe a year out if at all. looks like a good one.

[slickroger]

its really good thats just the gas I put all my services in there so it reminds me when my next fluid changes are.

[fueler]

Americans

Yeah that looks like my MPG !

[Empty V]

Here's my MPG, 2001 2WD. Ignore the anomaly, I must have put in the wrong mileage. Best I've gotten is 17.41mpg which was all freeway and highway driving with an average speed of 75mph.

Billy

[fueler]

do they make that mpg program for a regular LG "envy 2" cell phone?

i guess i should just write it down on paper lol

[Empty V]

do they make that mpg program for a regular LG "envy 2" cell phone?

i guess i should just write it down on paper lol

I'm not sure, it's called Gas Cubby and shows lots of data:

[bmlawless]

I get about the same as Empty V. I used to get 14.6 mpg around town. Now that I've started working 3 miles from my house I get 13 mpg racing from stop light to stop light. When I drive to visit my grandma every year I get 17.5 over the 1300-mile round trip at 70 mph.

Oh yeah, back on topic. I have noticed a difference in fuel economy with the Auto switch on. If the weather is crummy and I have it in all of the time, I'll get 11mpg.