How many miles to a tank 325i.

[4doorbmw]

What kind of gas mileage does your 325 get? Preferably miles to a tank. I feel like I'm not getting what I should.


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[MrBurgundy]

eta or i?

I have an i, 3.73 diff, cruising at 80mph, I use about 3/4s of a tank in ~180 miles which i think is about 20 mpg

City milage, sucks ass, not even worth calculating, because is just sucks...

Edit, I see that's the question is asking about an i

[4doorbmw]

I drive partial city and little bit of highway. Here's where I'm at now.



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[MrBurgundy]

That seems about right. M20s just suck on gas


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[e30davie]

Gotta remember these engines are old now, and as engines age, compression gets lower and thus efficiency gets worse.

I consistently get 11.5L/100km (21ish MPG) in my m20b23 on L-Jet pure city driving up and down hills to work and back. I have gotten it as low as 9L/100km (26mpg) on pure highway. but i rarely drive highway.

I have reconditioned the head on mine, and i have a sneaking suspicion it has new rings in it based on bore condition, but unconfirmed.

Oh and fuel gauges are typically quite inaccurate, mine goes up and down all the time. Only real way to get fuel economy is to fill the tank, use it up and note the milage, then fill it back up again and calculate how much fuel it took to travel your recordered milage.

[4doorbmw]

I need to get my valves adjusted soon seems like they're a little noisy.


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[cscracker]

I just put a rebuilt head on my 325iX, and I'm currently getting just over 21mpg on my ~75% freeway commute. This is consistent with my last one, too, when it was sorted and running right. They're both 5 speed swaps with the original 4.10 automatic diffs, so that freeway cruising is around 4k rpm.

[Das Delfin]

I get about 25 highway, 20 mixed. I have an early model so I'll get like 350 miles/tank on the highway and 240 in the city. I usually refill every 200. 4.10 diff

[MoreMayhem]

325i, 3.73 LSD, 5 Speed. Typically get 300 to 325 (lol) miles per tank. Last fill up the gas light came on at 344, which may be a record for me.

[4doorbmw]

325i, 3.73 LSD, 5 Speed. Typically get 300 to 325 (lol) miles per tank. Last fill up the gas light came on at 344, which may be a record for me.

Highway?


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[dnguyen1963]

It varies a lot. In the cold winter months, I average about 19 mpg city. When it is warmer (above 30F), I can get 21-24 mpg. Cruising on the highway, I can get about 27 mpg. 325IC.

[nando]

I always got ~300+ miles to a tank when my E30 was stock.

Now, it gets like 180-200 if I'm lucky.. but I don't drive it as much.

[Kershaw]

My is got 24mpg. My eta got 30mpg. My auto ix got 26mpg. My manual ixs get 20mpg. I usually refill 10 gallons at a time. Mixed 70/30 highway/city driving.

[Mook613]

My 325i vert is getting just over 29mpg on the highway and about 20mpg pure city driving. This is on regular 87 octane.
I have a rebuilt head.

[MrBurgundy]

Damn, I need to learn how to drive, you guys get pretty decent city numbers