E Free Gas (Page 1/2)
hunter29 JUN 30, 11:13 AM
Any reason I should not run Ethanol free gas in my 86GT ?
darkhorizon JUN 30, 12:10 PM
The fuel system is specifically built to handle E10-E15 fuel without any issues or performance loss. E0 fuel in michigan is extremely expensive and offers zero benefits.
edfiero JUN 30, 12:17 PM
FWIW,

I started running a 50-50 mix of E85 with premium E10 fuel as a way of dealing with spark knock in my SD4. (after reprogramming the ECU of course)
So far it is working fine and have not seen any adverse effects of the alcohol on the stock fuel system.

As mentioned by DarkHorizon the system was built to handle E10. The only advantage to running E0 would be a slight increase in fuel mileage. But if it costs you more than E10, then net/net you haven't saved any $$
hunter29 JUN 30, 12:52 PM
The cars not driven much and sits over the winter, ethanol attracts water, I don't need that.. Thanks for the reply's..
hunter29 JUN 30, 12:54 PM

quote
Originally posted by darkhorizon:

The fuel system is specifically built to handle E10-E15 fuel without any issues or performance loss. E0 fuel in michigan is extremely expensive and offers zero benefits.



Its only a dollar a gallon more, for the 20 gallons I buy a year I'll spend the extra buck..
darkhorizon JUN 30, 01:07 PM
E10 and E0 collect the same amount of water at the same RATE but E10 will hold a very slight amount more. This is why alcohols are used as storage stabilizers and fuel line antifreeze so that the absorbed water into the Gasoline part of fuel phase seperates the alcohol can absorb the water left behind and prevent it from freezing.
theogre JUN 30, 01:43 PM

quote
Originally posted by darkhorizon:
The fuel system is specifically built to handle E10-E15 fuel without any issues or performance loss. E0 fuel in michigan is extremely expensive and offers zero benefits.

A bit wrong...

E10 or Station Pumps labeled 10% or "up to 10%" Ethanol is Fine w/ old cars not just Fiero. Even in the 70's most OM and other docs from car makers say 0 - 10% E and 0-5% Methanol. (Methanol is mainly used in "Dry Gas.")
Many areas the stations say 10% but often has less to much less E for many reasons.

E15 to E85 is for "Flex Fuel" vehicles. Station Pumps w/ them should tell you this. Don't use them on any vehicles w/o this "feature" or Can "eat" fuel system parts

Yes, Non Ethanol Gas is rare or Regulated in many places.
Example: Some areas only have this at Marinas for boat use. They often won't sell for other uses, more so for cars/trucks because doesn't have Road Tax etc. and often dyed red or purple. If caught having Dyed gas in road cars is often a big problem w/ State's "IRS" equiv getting big Fines and even Jail Time.

------------------
Dr. Ian Malcolm: Yeah, but your scientists were so preoccupied with whether or not they could, they didn't stop to think if they should.
(Jurassic Park)

The Ogre's Fiero Cave

Dennis LaGrua JUN 30, 02:24 PM
The gasoline pumps in my state (NJ) say that the gasoline COULD contain up to 10% Alcohol. Only well to tell for sure is to buy a test kit. You may be getting pure gas or E10.

------------------
" THE BLACK PARALYZER" -87GT 3800SC Series III engine, custom ZZP /Frozen Boost Intercooler setup, 3.4" Pulley, Northstar TB, LS1 MAF, 3" Spintech/Hedman Exhaust, P-log Manifold, Autolite 104's, MSD wires, Custom CAI, 4T65eHD w. custom axles, Champion Radiator, S10 Brake Booster, HP Tuners VCM Suite.
"THE COLUSSUS"
87GT - ALL OUT 3.4L Turbocharged engine, Garrett Hybrid Turbo, MSD ign., modified TH125H
" ON THE LOOSE WITHOUT THE JUICE "

darkhorizon JUN 30, 02:24 PM

quote
Originally posted by theogre:

Originally posted by darkhorizon:
The fuel system is specifically built to handle E10-E15 fuel without any issues or performance loss. E0 fuel in michigan is extremely expensive and offers zero benefits.A bit wrong...

E10 or Station Pumps labeled 10% or "up to 10%" Ethanol is Fine w/ old cars not just Fiero. Even in the 70's most OM and other docs from car makers say 0 - 10% E and 0-5% Methanol. (Methanol is mainly used in "Dry Gas.")
Many areas the stations say 10% but often has less to much less E for many reasons.

E15 to E85 is for "Flex Fuel" vehicles. Station Pumps w/ them should tell you this. Don't use them on any vehicles w/o this "feature" or Can "eat" fuel system parts

Yes, Non Ethanol Gas is rare or Regulated in many places.
Example: Some areas only have this at Marinas for boat use. They often won't sell for other uses, more so for cars/trucks because doesn't have Road Tax etc. and often dyed red or purple. If caught having Dyed gas in road cars is often a big problem w/ State's "IRS" equiv getting big Fines and even Jail Time.




I stand by the e15 statement. The only concern is emissions and other related fuel injection performance, which is more than capable of handling the e15. From a corrosion standpoint, there are no differences between e10 and e15.

[This message has been edited by darkhorizon (edited 06-30-2020).]

sourmash JUN 30, 05:41 PM
The price diff in 87ish octane here is about 20 to 29 cents presently.