what gas to do u fill up

tig · 02-21-2008, 04:42 PM

just curious as to what u guys put in you e36? and what u think the best gas is? i use sunoco 94 in my 328is, these gas prices are gonna kill me when the car comes out of storage in the summer with the new 3.38 diff

europrince · 02-21-2008, 05:43 PM

use what's in the owner's manual and on the gas cap. anything greater is a waste of money

rlim · 02-21-2008, 09:01 PM

I agree with europrince ... premium 91 on my 328i as recommended in manual. Anything above is a waste of money.

R.S.C · 02-21-2008, 09:09 PM

Sunoco is right by my house so I fill up at 94. It's not a big difference in price so I don't mind.

tig · 02-21-2008, 09:30 PM

well mines a high mile'er so i heard 94 gas would be better cuz its cleaner, plus i get triple the sunoco pts if i fill up 94 lol. also heard sunoco gas is the best gas compared to other gas stations not sure if this is tru

Boss17 · 02-22-2008, 01:01 AM

I've put nothing but 94 octane in my car since the day i got it. I have like 25,000 sunoco ultra 94 points to prove it lol. Just as R.S.C. said, it's only a little bit more so i put the best the station can offer.

vadim321go · 02-22-2008, 12:17 PM

shell > sunoco> esso > petro

petro is garbage, i didn't think gas mattered but then i switched from petro to shell and wow what a difference. better mileage and smoother engine (Y)

europrince · 02-22-2008, 12:41 PM

Quote:

Originally Posted by vadim321go

shell > sunoco> esso > petro

petro is garbage, i didn't think gas mattered but then i switched from petro to shell and wow what a difference. better mileage and smoother engine (Y)

do you have any facts to prove this or are you just speculating? please don't use your car as an example. i'd like to see a legitimate study.

98Dinan3 · 02-22-2008, 02:23 PM

Ultra 94....always. The only time I switched from the 94 was when I drove to FL. Then, I just used the highest grade they had.

thumper · 02-22-2008, 04:09 PM

In my 84 ae86, I use only ultra 94 from sunoco
In my 02 cr-v, I use whatever I can find when I need gas lol
My e36 is not on the road yet so i have not filled up gas in it yet.

tig · 02-22-2008, 05:08 PM

has anyone ever noticed that at all gas stations its says gas may contain upto 10% ethanol including ultra 94 at sunoco.however if you go to shell their 91 oct. gas says contains no ethanol, what exactly does this mean? shells 91 gas is better cuz there is no ethanol?

vadim321go · 02-22-2008, 07:32 PM

Quote:

Originally Posted by europrince

do you have any facts to prove this or are you just speculating? please don't use your car as an example. i'd like to see a legitimate study.

its called ass dyno, and its as scientific as ill ever get

but i did get better mileage when i switched to shell.

vadim321go · 02-22-2008, 07:33 PM

Quote:

Originally Posted by tig

has anyone ever noticed that at all gas stations its says gas may contain upto 10% ethanol including ultra 94 at sunoco.however if you go to shell their 91 oct. gas says contains no ethanol, what exactly does this mean? shells 91 gas is better cuz there is no ethanol?

Ethanol fuel decreases fuel-economy by 15-30%; this can be avoided using certain modifications that would, however, render the engine inoperable on regular petrol without the addition of an adjustable ECU, or use of multiple ECUs to run the engine on multiple fuel types.[98] Tough materials are needed to accommodate a higher compression ratio to make an ethanol engine as efficient as it would be on petrol; these would be similar to those used in diesel engines which typically run at a CR of 20:1,[99] versus about 8-12:1 for petrol engines.[100]

taken from wikipedia

330Hi · 02-22-2008, 08:43 PM

Shell V-power!

Dr. Flyview · 02-22-2008, 10:34 PM

I gotta use 94 cause of the chip, but I hate to think that I'm getting 10%+ less fuel economy b/c of the ethanol

MarkD actually told me I can try running 91 and if it works (no pinging), it should be fine. Now my car has a knock sensor so I don't think it would ever actually ping. On my old engine I was using 91 no problem with the chip. The one time I tried it on my new car with the chip, it was sputtering a bit (reducing power?) but I believe it was petro canada 91, which people have said is shit.