Eta

[bddog]

Just wanted to say-- I own an eta. Gas mileage plus. Came back from the Big Trees this week. 75 mph-34 mpg - from Fresno to Redondo Beach . Only time I've ever had anything to say about an e over an i. Won't last, I know. Probably regret it already, knowing you guys.- Steve

[viali8]

love the eta motor

[TDE30]

I still miss mine when I'm at the gas station 3 times a week.

[Stephen]

i like mine, esp after the chip :) good on gas too.

[FLUTE007]

love mine, but i only get about 27mpg. the chip and a 3.73lsd, and will do that.

[rThor432]

Yep, no matter how hard I beat on it I cant get less than 33 mpg.

Trey, the b25i motor shouldnt be that bad. Sounds like you need an S50/2--- gas mileage and performance :).

[buzdof]

Wow, my eta can't get any better than 22 city, 25 highway :(

Edit: stock motor/diff/tire size but the car did have a 5-speed swap done. markD chip increased mpg a little, up from 19/22...

New rotor/cap/plugs/fuel filter/air filter/fuel pump/fuel psi reg... what else would affect mpg so much?

[SamE30e]

Mine gets shit milage.

[Jand3rson]

I love my eta motor, especially with the Turner Motorsport chip. Tons of low end grunt, and low highway revs at speed.

[TDE30]

Trey, the b25i motor shouldnt be that bad. Sounds like you need an S50/2--- gas mileage and performance :).

It should be noted that I only throw in $15 here, $20 there when it comes to gas. I rarely fill it up unless I have unusually large drug deal the preceding week.

[e30lov]

my last tank on city miles in my 318i was just over 370 miles. meh

[rThor432]

New rotor/cap/plugs/fuel filter/air filter/fuel pump/fuel psi reg... what else would affect mpg so much?

Bad afm, coolant temp sensor (to dme), and maybe the O2 sensor can affect it.

I had a bad afm, so my car wouldnt run at all. I put in a spare b25i afm, thinking it would be ok, but not perfect. I was way off-- I got maybe 8 mpg on the highway. I was running very rich. So afm affects that quite a bit.

Coolant temp sensor will tell the injectors to stay open longer if the sensor is reading a temperature that is below what it wants to see.

O2 sensor reads the amout of hydrocarbons in the exhaust gases, and an incorrect reading can affect how rich/lean you are running.

[buzdof]

Bad afm, coolant temp sensor (to dme), and maybe the O2 sensor can affect it.

I had a bad afm, so my car wouldnt run at all. I put in a spare b25i afm, thinking it would be ok, but not perfect. I was way off-- I got maybe 8 mpg on the highway. I was running very rich. So afm affects that quite a bit.

Coolant temp sensor will tell the injectors to stay open longer if the sensor is reading a temperature that is below what it wants to see.

O2 sensor reads the amout of hydrocarbons in the exhaust gases, and an incorrect reading can affect how rich/lean you are running.

I replaced the O2 sensor a few weeks ago and the coolant temp sensor a few months ago. Would having a 72*C thermostat affect anything?

[88driftIS]

Not mpg's, well not to your extent.

[learningcurve86]

i get 23-26 mpg on average per tank. i would kill to brake 30. I really need to get a new O2 sensor... I like etas though... but then i haven't had an i