30mpg 325is?

[ptownTSI]

Does that seem high for highway only, no a/c, doing 60-62mph? just wondering if my OBC is wack. i havent checked doing the pen/paper method.

[Justin B]

certainly seems high for a 325is, but instant mpg on the highway could be that, overall throughout a tank? i'd be asking what kind of egg you have under your right foot :) best mpg ive gotten is like 24ish I think? ... and that was mostly all highway on a trip.

[bimmerdreamer]

i could see it if your a light foot at cruising RPM's. Ive gone 324 mi in the 318i on a tank (about 31mpg) driving prudent on a day trip.

[dlmpsy]

I am currently getting about 27mpg on trips using 93 octane. I had some cat. trouble, and when it was removed my mileage went up 2-3 mpg. I have headers and a freeflow exhaust which probably helps.

[Avus E30]

If you changed the rear dif you can do it no problem. I have an m20b25 in my car with a 2.93 open and I can get 34-35 mpg avg on a tank if I am doing highway driving averaging 60-65

[DEV0 E30]

Do you flog it on onramps at all?

If you changed the rear dif you can do it no problem. I have an m20b25 in my car with a 2.93 open and I can get 34-35 mpg avg on a tank if I am doing highway driving averaging 60-65

I'm so taking whatever I have from another E chassis I have. Might be a 2.79 even. What do you reach by the end of 1st, and 2nd?

[Avus E30]

it really is interesting to read you guys that get low 20s and stuff around town and I get 26 no matter how I drive and then when I do highway I can get so much higher. It really doesnt lose but so much power, plus I dont have to shift every 3 seconds while I am cruising around town

[AdironRider]

My ix would get 28mpg cruising at 70 on the highway, so Id think 30 in a well tuned is is completely possible. I get close to 36-37 in my 318is just on the highway and average 33-35 mpg per tank.

[PeaveyBassist]

When my car was running right when I first got it, I putted around town shifting at 2k and BARELY touching the gas and usually shifting from 3rd to 5th around 35mph and cruised at 40mph. I got 27mpg average on one tank.

Will

[blunttech]

i got 30.2 on a tank on the way back from florida one time and never again. thats with a stock 325is. i think i got around 26 in normal highway driving

[ptownTSI]

well when i get in the e30 i try to keep the spirited driving to a minimum so that i CAN get good gas mileage. Its not really very fast so it doesnt do it for me in a straight line, and you take corners fast without actually accellerating alot either.

[Insanity]

When my car was running right when I first got it, I putted around town shifting at 2k and BARELY touching the gas and usually shifting from 3rd to 5th around 35mph and cruised at 40mph. I got 27mpg average on one tank.

Will

That's because driving like that is actually bad for mileage. The M20 in stock form isn't meant to be run below 2k under load. Not to mention that if you barely press the gas to accelerate, you'll be inducing worse gas mileage by extending the time that you need to accelerate by more than the decline in mileage from accelerating more quickly.

Accelerate at around 35-40% throttle and shift at 3k and your mileage will improve.

[kommissar]

I regularly get 28 - 30 MPG on long highway trips doing 70-75 for distances greater than 100 miles. My record is 31 (and some decimal) when I used an entire tank of gas on the PA turnpike. It is accurate; I verified it several times.

Also, the PA turnpike sucks.

[Avus E30]

My best ever was 34.8 on a 340 mile tank

[matte30is]

around 24 with the 3.73. 20 with the 4.10.