1991 318is mpg

[mongoose2231]

Ok guys, I've looked around and about, and it seems the 318is only gets about 25mpg highway (government website lists the mpg of the car according to window sticker from back in 91). Thing is I used to own a 1991 318i (4-door stick shift M42 obviously) and it seems to have been getting better mileage as far as I recall. What is the truth behind the numbers. Looking to get out of my 16mpg truck and getting a daily for my 130 mile daily commute. Help is highly apreciated. In the mean time I will keep searching the forums for real life numbers. Thanks guys.

[fryerfighter94]

I believe that it is above 30? I'd be interested as well.

[Dj Buttchug]

at one point i was getting a steady 27-29 mpg freeway miles on my stock m42.

then i bought a 2.93 lsd and i was getting close to 40 mpg

[Balleristic31]

ive gotten 33+ on the freeway

[Ryan...]

I often get between 28-30 mpg hwy. I use 91 octane fuel every time, usually add a can of seafoam once a month, and thats it. I've noticed that wind affects my MPG quite a bit, not uncommon for mileage to drop around 3mpg on bad days..

[///digitalme]

about 28-30mpg on mine

[fryerfighter94]

what are you guys getting in terms of city mpg as well?

[Dj Buttchug]

mine goes to complete shit in the city. like 20 if im lucky

[///digitalme]

city for me is about 19-24 i have a bad o2 sensor...

[mongoose2231]

at one point i was getting a steady 27-29 mpg freeway miles on my stock m42.

then i bought a 2.93 lsd and i was getting close to 40 mpg

So swapping the diff would practically put me WELL over the 3Ompg range? That's great, I can now drop the fit, yaris and all others from my potential list, and just go ahead and get me the 318is i found. Great, thanks for the help guys.

[dkbmxer002]

mine gets mid 20's at least in city and over 30 on the highway with 4.10 gears and something well over 300k miles. i run 87 with some chip that should have premium lol.

[mongoose2231]

i knew that getting back in an e30 would be the way to go

[Dj Buttchug]

So swapping the diff would practically put me WELL over the 3Ompg range? That's great, I can now drop the fit, yaris and all others from my potential list, and just go ahead and get me the 318is i found. Great, thanks for the help guys.

wait what? you considered a yaris over an e30? WTF man?

[dkbmxer002]

only plus to one of those eco shit boxes is a warranty and no break down fears (well less).

but i try to tell people that alot... get a cheaper older beater that gets good gas mileage (e30 is top of that while still being extremely fun car) and just spent a tiny fraction of what you would with a new eco shit box.. save on insurance.. get maybe 5-8 mpg worse (sometimes even better) and not deal with a car payment or any other nonsense.

[tjts1]

The best I've seen on a long drive was 37mpg. Worst was 24. No PS, electric fan, 3.64 diff, EV6 injectors.