North American Turbocoupe Organization



E10 gas safe to use...
Kuch Offline
Member
#1
I have been adamant about using Non Ethanol fuel in my 88 due to concerns with any Ethanol in older cars. I already never use ethanol in my small engines and my old carbed cars. Problem is, the highest octane for non ethanol around me is only 91, but I can get 93 octane with 10% ethanol in it. With more boost and not wanting any detonation in my 88TC, should I just run the 93 ethanol and or stick with Non 91. I can tell you my old 64 Galaxie with high compression does not like the low octane for sure.
1988 Turbo Coupe, Black/Black, 5 Speed, Moonroof, T3/T4 50 trim, 255LPH, BBK AFPR, 3" DP dual 2.5", MGW shifter, K&N, Gillis valve, RR cam
1964 Ford Galaxie 500XL, 390 6V, 4 Speed, Vast and fast
1960 Ford Starliner, 292 Y Block, 3 Speed, slow and low
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Jeff K Offline
Administrator
#2
All we have here in all grades of gasoline is E10. I have been running E10 93 octane in my TC for many years with zero issues. Of course, E10 has slightly less energy content per gallon than 100% gasoline, so you may notice a very slight decrease in gas mileage.
Jeff Korn

88 Turbo Coupe: Intake and exhaust mods, T3 turbo at 24 psi, forced air IC, water injection, BPV, Ranger cam, subframes, etc., etc.
86 Tbird 5.0 (original owner): intake, exhaust, valvetrain mods, 100 HP N2O, ignition, gears, suspension, etc., etc.
05 Taurus SEL Duratec daily driver
04 Taurus Duratec (wifes car)
02 Pontiac Grand Prix GT
95 Taurus GL Vulcan winter beater
67 Honda 450 Super Sport - completely customized
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Kuch Offline
Member
#3
Ok nice, I have read that fuel injected cars do not have the same problems that older carbed cars do, so that's reassuring. I still plan to run some non ethanol for the final fill up prior to parking for the winter to prevent any corrosion or separation. Thanks Jeff
1988 Turbo Coupe, Black/Black, 5 Speed, Moonroof, T3/T4 50 trim, 255LPH, BBK AFPR, 3" DP dual 2.5", MGW shifter, K&N, Gillis valve, RR cam
1964 Ford Galaxie 500XL, 390 6V, 4 Speed, Vast and fast
1960 Ford Starliner, 292 Y Block, 3 Speed, slow and low
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anasazi4st Offline
Senior Member
#4
Yeah here in Phoenix that’s all we have. They used to have Ethanol in gasoline for only a few months a year, now it’s year-round.

I’ve had no issues since I first got my TC in 1991.

One of the reasons your ‘64 Galaxie isn’t happy isn’t just the lower octane, but also the lack of lead in fuel. I’d love to find another 1970 Olds Toronado like I had in the late 70s (454 cubic inches 4-bbl carb!) but after talking to an owner at a car show a few years ago probably not. The lower octane minus the lead content has made those cars much less fun to drive. It’s possible to get racing fuel and a lead additive to counteract, but the additional cost (and poor availability of stations that sell racing fuel, at least here) make even semi-regular driving in such a vehicle less feasible.
Another proud dues-paying member.

1987 Turbo Coupe w/T5OD, 8.8 axle, grey smoke; most options. Got it in 1991 with 41K miles: 3 turbos, 2 heater cores, 1 T5OD full rebuild, 5 clutches, 1 head gasket, 2 Teves II ABS units, etc. later....
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