87 oct straight gas vs 91 oct ethanol

Posted By: mrm82

87 oct straight gas vs 91 oct ethanol - 11/10/13 09:55 PM

Just curious on some opinions, recently discovered a gas station close to me that sells straight gas. Its only 87, however its the only place for a hours drive that sells non ethanol. Currently running 91 with ethanol in a 72 era 318, with only mods being a electronic diz, offenhauser intake and 4 barrel holley. With all the headaches associated with ethanol blends, whats some thoughts on switching to a lower grade oct to lose the ethanol?

Posted By: Supercuda

Re: 87 oct straight gas vs 91 oct ethanol - 11/10/13 09:56 PM

your 318 doesn't need 91 octane. without or without ethanol.

Regular gas is fine, with or without ethanol.

Posted By: mrm82

Re: 87 oct straight gas vs 91 oct ethanol - 11/10/13 10:05 PM

yea that was kinda my thought being that the 318 is not exactly known for high compression. I was just shocked to see straight gas at the pump.....

Posted By: RapidRobert

Re: 87 oct straight gas vs 91 oct ethanol - 11/10/13 10:06 PM

Quote:

With all the headaches associated with ethanol blends, whats some thoughts on switching to a lower grade oct to lose the ethanol?

If you have access to non ethanol then definitely take advantage of your good fortune

Posted By: Sunroofcuda

Re: 87 oct straight gas vs 91 oct ethanol - 11/10/13 10:26 PM

ANYTHING with ethanol is BAD! Seriously - I just added some ethanol-free gas, an ounce of Sta-Bil ethanol treatment, & a couple ounces of regular Sta-Bil to my Challenger for it's winter hibernation. Costs me over $4.00 a gallon for e-free gas - ONE station by me has it at a special pump.

Posted By: okie

Re: 87 oct straight gas vs 91 oct ethanol - 11/10/13 11:13 PM

There are several stations around me that sells the ethanol free around me

Posted By: paris401

Re: 87 oct straight gas vs 91 oct ethanol - 11/12/13 12:20 AM

after taking the following '2yr old' float from my wifes 67 gtx, I am keeping all the auto's filled to the brim with petro... unfort, all we can get is ethanol favored fuel, so I mixed 25% 110 leaded cam 2, along with stabil marine stabilizer, dry gas, and topped off with 93 ethanol... hoping for no repeat of this

Attached picture 7920644-gasfloat.JPG

Posted By: FC771SuperBee

Re: 87 oct straight gas vs 91 oct ethanol - 11/12/13 04:32 AM

Run the straight gas when you can. The 318 will run fine, I believe its either 8 or 8.2 to one comp. Plus you will probably get better mileage as straight gas has a higher BTU rating than the ethanol.