Radio Flyer1647545514 Posted April 26, 2009 Report Share Posted April 26, 2009 I understand the difference b/w the octanse, but is there a huge difference between 93 and 94? I drive an older car which runs hotter than a newer one which is why I'm asking. Quote Link to comment Share on other sites More sharing options...
thorne Posted April 27, 2009 Report Share Posted April 27, 2009 the diffreance is 1 more point. thats about 5-10F I believe . I can't remeber and I don't have my book beside me. E85 / thread =) Quote Link to comment Share on other sites More sharing options...
Rob1647545496 Posted April 27, 2009 Report Share Posted April 27, 2009 last time i checked sunocco 94 and shell 93 both test at 95 octane. if your not racing i would run the least octane you can without getting knock. whats your compression ratio? Quote Link to comment Share on other sites More sharing options...
Cordell Posted April 27, 2009 Report Share Posted April 27, 2009 Not that it makes a big difference, but I like to get Sunoco 94 at the few Sunocos that have a separate handle for it. This just makes me feel like I'm getting nothing but 94. I'm not very interested in using other gasolines because they're all advertising additives, and I don't want additives, I want gasoline. Quote Link to comment Share on other sites More sharing options...
Guest fist302 Posted April 27, 2009 Report Share Posted April 27, 2009 Not that it makes a big difference, but I like to get Sunoco 94 at the few Sunocos that have a separate handle for it. This just makes me feel like I'm getting nothing but 94. I'm not very interested in using other gasolines because they're all advertising additives, and I don't want additives, I want gasoline. +1 Quote Link to comment Share on other sites More sharing options...
supldys Posted April 27, 2009 Report Share Posted April 27, 2009 When i went out to Enid,OK, every gas station advertised NO additives, not even ethanol. Pure gas is big down there Quote Link to comment Share on other sites More sharing options...
Buck531 Posted April 27, 2009 Report Share Posted April 27, 2009 http://www.columbusracing.com/forums/showthread.php?t=54704&highlight=octane Quote Link to comment Share on other sites More sharing options...
Rob1647545496 Posted April 27, 2009 Report Share Posted April 27, 2009 Not that it makes a big difference, but I like to get Sunoco 94 at the few Sunocos that have a separate handle for it. This just makes me feel like I'm getting nothing but 94. I'm not very interested in using other gasolines because they're all advertising additives, and I don't want additives, I want gasoline. all gasolines have additive and if you want just gasoline you shouldn't be buying sunoco which is 10% ethanol. the only place i've found that sells 100% gasoline is meijer and on average i'm getting 4 MPG better using it over the e10. Quote Link to comment Share on other sites More sharing options...
nurkvinny Posted April 27, 2009 Report Share Posted April 27, 2009 Sunoco fells nice burning in my bike. Quote Link to comment Share on other sites More sharing options...
CRed05 Posted April 27, 2009 Report Share Posted April 27, 2009 E85 / thread =) I've thought about getting an E85 tune and came to the conclusion that its completely useless. Horrible gas mileage, its not really cheaper and not all that easy to get in Ohio. I can run 93 and if I need to go fast I can run 100+, why waste my time with e85... Quote Link to comment Share on other sites More sharing options...
Nate1647545505 Posted April 27, 2009 Report Share Posted April 27, 2009 I've thought about getting an E85 tune and came to the conclusion that its completely useless. Horrible gas mileage, its not really cheaper and not all that easy to get in Ohio. I can run 93 and if I need to go fast I can run 100+, why waste my time with e85... If you have the fuel system to support it, E85 has the R+M/2 of 101 oct, on the cheap. Not to mention, alcohol has some interesting characteristics that definitely help it increase output on forced induction applications. How can you say no to higher mean pressure with lower peak pressure? Quote Link to comment Share on other sites More sharing options...
CRed05 Posted April 27, 2009 Report Share Posted April 27, 2009 If you have the fuel system to support it, E85 has the R+M/2 of 101 oct, on the cheap. Not to mention, alcohol has some interesting characteristics that definitely help it increase output on forced induction applications. How can you say no to higher mean pressure with lower peak pressure? I knew the octane rating was higher, but didnt know it was that high. Hmmm... So what would be better, 100oct gasoline or E85? No difference? Quote Link to comment Share on other sites More sharing options...
Nate1647545505 Posted April 27, 2009 Report Share Posted April 27, 2009 I knew the octane rating was higher, but didnt know it was that high. Hmmm... So what would be better, 100oct gasoline or E85? No difference? Really depends on your application. In a test lab, where the only variable is the fuel, E85 or any other "oxycarbon" based fuel will make more power but at the cost of higher consumption rates. Quote Link to comment Share on other sites More sharing options...
Radio Flyer1647545514 Posted April 27, 2009 Author Report Share Posted April 27, 2009 I normally use 93 from meijer, but tried the 94 from Sunoco the other day. I was just wondering if it made a big difference at all in my particular car. 1988 325i BMW. Quote Link to comment Share on other sites More sharing options...
Nate1647545505 Posted April 27, 2009 Report Share Posted April 27, 2009 I normally use 93 from meijer, but tried the 94 from Sunoco the other day. I was just wondering if it made a big difference at all in my particular car. 1988 325i BMW. Nah the 88+ M20 engine is lower comrpession, and will run just fine on 87 (in stock form). Quote Link to comment Share on other sites More sharing options...
Radio Flyer1647545514 Posted April 27, 2009 Author Report Share Posted April 27, 2009 I've been told to run premium. All I have is an exhaust kit on it. Headers back. EDIT, or I believe it's headers back anyway. Stromung exhaust, it was on the car when I got it. Quote Link to comment Share on other sites More sharing options...
Nate1647545505 Posted April 27, 2009 Report Share Posted April 27, 2009 If the car isn't chipped, you'll be fine on 87. The air meter will pickup the change in airflow. The calibration may not be perfect, but running 93 octane won't correct it. Quote Link to comment Share on other sites More sharing options...
Rob1647545496 Posted April 28, 2009 Report Share Posted April 28, 2009 When i went out to Enid,OK, every gas station advertised NO additives, not even ethanol. Pure gas is big down there Interesting... "As of January 1, 1995, no gasoline in the United States can be marketed without an approved detergent additive package." Quote Link to comment Share on other sites More sharing options...
smokinHawk1647545499 Posted April 28, 2009 Report Share Posted April 28, 2009 I've thought about getting an E85 tune and came to the conclusion that its completely useless. Horrible gas mileage, its not really cheaper and not all that easy to get in Ohio. I can run 93 and if I need to go fast I can run 100+, why waste my time with e85... get a turbo then turbo+e85 = bliss Quote Link to comment Share on other sites More sharing options...
thorne Posted April 28, 2009 Report Share Posted April 28, 2009 I don't have hard dyno numbers to back it up yet but damn does it feel nice and I've yet to have knock. Quote Link to comment Share on other sites More sharing options...
atomicfusion1647545515 Posted April 28, 2009 Report Share Posted April 28, 2009 Um my car now runs on Moonshine! E100 FTW! Quote Link to comment Share on other sites More sharing options...
im faster Posted April 28, 2009 Report Share Posted April 28, 2009 less additives more octane for me Quote Link to comment Share on other sites More sharing options...
CRed05 Posted April 28, 2009 Report Share Posted April 28, 2009 get a turbo then How many do I need? http://www.nogaroblue.com/mediac/400_0/media/DIR_9926/CleanEngine.jpg Quote Link to comment Share on other sites More sharing options...
CRed05 Posted April 28, 2009 Report Share Posted April 28, 2009 I'm going to have to go E85... S4 with E85 tune: http://i110.photobucket.com/albums/n84/amgmuscle/S4AWHP.jpg Quote Link to comment Share on other sites More sharing options...
twistedfocus1647545489 Posted April 28, 2009 Report Share Posted April 28, 2009 So does that make it Stage 3.E85?? Quote Link to comment Share on other sites More sharing options...
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