Ok a buddy of mine and I got in a little tiff about gas mileage and whatnot, he owns a 94 22re pickup and i own a 93 22re pickup. He gets low to mid 20's MPG pretty much all the time. I, on the other hand, get about 16MPG (60/40 hwy/city) on my regular route, and have only once been able to get my truck to 18.5 mpg with 99.9% freeway driving. He is convinced that my poor gas mileage is b/c of my driving habits. So after a little searching on yotatech.com and finding:

we set up the usual $1 bet that I would get at least 18mpg with my usual driving route (60%hwy/40%city) if i just change my driving habits.

For this entire tank I will follow these rules:
Cannot go higher than 2k rpms in any gear except 5th (aiming for 1750rpm upshifts)
Go the speed limit or below on the freeway
Shift to neutral and coast to a stop @ intersections
Easy on the gas and easy on the brakes
No tailgating (not that i do that normally just had to make it a rule)

I dont think it will make that much of a difference because i usually shift at around 2.5k-3.5k and only go about 5-10 mph over on the freeway.

What do you think?

 

1750rpm shifts? Thats way too low. I shift at 3k and get 18-22. 1750 bogs down the engine and in my opinion, would cause you to use MORE gas.

Btw tailgating can actually work to reduce wind resistance, assuming you can stay at a constant speed. Drafting big trucks really does work, as proven on mythbusters.

You are starting to get into fuel mileage theory as well, and we are talking hypermiling.

 

I had no idea what hypermiling was before you posted it.

"you achieve hypermiler status when your average FE is greater than the EPA combined for your vehicle."

for 1993 toyota pickup 22re 4wd:
EPA Mileage Estimates: (City/Highway/Combined)
Manual: 17 mpg / 20 mpg / 18 mpg

Seems like most ppl on this site are hypermiling if the combined is only 18

As for the low rpm selected, we both agreed that the 1500 rpm that Abe shifts at was too low, so we bumped it up to 1750. Well see if i bog out, most likely we will change it.

 

My corolla is supposed to get 28, but regularly gets 30-32 average, and I do not hypermile that car. There are far too many factors in a used car to ever get a legitimate comparison between two rigs.

 

be gentle, shift when it feels ok, drive like n old lady......i get 20.5 or so, with 33's n stock gearing,,,, 88 hilux 271k

 

Im still a little confused about this hypermiler stuff. Are the gains from modding your car or just driving better/slower?

Im now interested in trying to hypermile

 

Last time I drove my truck I got ~20 mpg while pulling up the Pass. That's from my house to the top of the pass. It's an auto and I go full throttle most of the time. The mileage was corrected using my GPS, instead of the stock ticker.

I could squeeze more if I was more patient and eased into the throttle and all, but, I'm not patient.

 

um if you get 18 mpg with a 22re on the hwy that isnt good. i get 16-17 mpg in town and a bit hwy with a 3.0

 

Haha tell me about it, that's what started the discussion. I've got a few more things I gotta do: replace the muffler, re gap plugs, check vaccum leak with propane, air up the tires a bit more, make sure the TPS and DP are both adjusted correctly, etc.

 

wow so 1750 is way too low, i bog out going into 3rd, and i feel like a race car driver because of how fast i have to upshift. I have veto'ed the 1750 limit and changed it to 2500 upshift. Abe, I have no idea how you can shift at 1500.

So with shifting between 2k and 2.5k and a new way (for me) of driving on the freeway, (locked skinny pedal even when going uphill, and thus slowing down, and then catching back up at the crest and letting off going downhill, slowing down again) my gas mileage is looking promising. I usually get about 55 miles before i get to the quarter tank mark on the guage, today i got to about 74.
I know the gas gauge is not a good way to calculate mileage but its such a big difference i can tell that im getting somwhat better mpg.

 

I've got 4.88's in my '85 - I don't have a tach but I bet I can shift at about 1500-1750 in most conditions.

Fink

 

for the most part, its the driver when the cars are watching. There is such a wide range of messed up engines out there

 

I tried to shift at 1500rpm today and it was ridiculous. I had to give it up after one try because A)it took FOREVER to get up to speed and B)people behind me were getting pissed. I came to the conclusion that shifting at anything below 2500rpm is ridiculous in MY vehicle. I suppose if I were going downhill all day long or an even surface I could shift at 1500, but I don't think it's very good on the motor to be constantly bogging down.

FYI I got 15mpg in my 3.0 4Runner last time I filled up and that's with 32's, 4.30's, the A/C cranked constantly and several off-road trips.

 

Well my bet just got blown to hell, one my buddies called me to help him move out of his apt because he and his old lady just split up (im "the truck guy" now i guess). Three trips and 40 miles later, I said F this tank and loaded up two three wheelers and drove down to wilkeson/carbonado area to our little trail spot (a little ways before evans creek if your familiar with this area).

I will redo this driving test next tank with the same rules except now the shift is aimed at 2250 rpms. Not for any bet i just want to see the results.

 

Why don't you just trade trucks for a week?

 

1500-1750 no way

 

x2...

 

Ya know thats a good idea as far as the bet goes, but in the long run i want to see if i can get better mileage from adjusting how I drive and eventually learn better driving habits.

Anyways i filled her up before work today and calculated 16.5 MPG from 208 miles burning 12.57 galons. Which is suprisingly higher than what I wouldve gotten hauling around my toys and helping a guy move.

 

Hmmm.

I shift my 22RE at 2500-4000 depending on what I'm trying to do.

I've got 33's and 4.88's, and dual cases. Corrected fuel mileage is 22-24 city, and 26-27 hwy.

I think it has a lot to do with the truck.

 

Man you efi guys got it good.
My 22r on 35's and 4.10's is giving me 16
My other 22r on 32's and 4.10's is giving me 12 (obvioulsy having issues)
The 16 mpg is the healthy one
Yeah i tested this theory myself, driving like an old lady gets you way better gas mileage