30% Ethanol in the fuel - TCCoA Forums
 
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post #1 of 17 (permalink) Old 03-03-2011, 06:16 AM Thread Starter
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30% Ethanol in the fuel

Does anyone knows if I could fuel a mix of 30% Ethanol / 70% Petrol in my '93 Cougar 5.0L without damaging fuel system/engine ?
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post #2 of 17 (permalink) Old 03-03-2011, 08:22 AM
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Before I ran that much ethanol, I'd first replace ALL the rubber in the fuel system. Also, you'll need a tune - the stock computer programming won't handle that much easily.

The ENGINE can tolerate it, but the rubber parts, especially if they're the 19 year old originals, are not going to be really happy with that much of the more corrosive ethanol going through them.

As always, a new fuel filter would be HIGHLY recommended. Oh, and kiss your gas mileage (such as it is) goodbye. I hope you like your filling station personnel

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post #3 of 17 (permalink) Old 03-03-2011, 01:38 PM
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Also, your fuel system - injectors, pump, etc will need changed to larger units that will be able to supply more fuel. 25-30% larger for E-85, will have to do the math for E-30.

Dont think a regular filter is compatible either, might gunk up, will have to do more research on that though.

IF you decide to do all of that, and it is a LOT, might as well use E-85.

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post #4 of 17 (permalink) Old 03-04-2011, 04:52 AM Thread Starter
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What about 10% Ethanol and 90% petrol (E10) ?
Does anyone think that could cause problems ?
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post #5 of 17 (permalink) Old 03-04-2011, 05:49 AM
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Most fuel is 10-15% already. (Just saw your not in the States oops).

IMHO you could go 30% but know more, but why? My SC loves ethanol but any high temp/compression engine will.

For power you always want to run the lowest octane your engine can handle and E85 is 108.

If all else fails get a bigger hammer!

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post #6 of 17 (permalink) Old 03-04-2011, 07:06 AM Thread Starter
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Thanks for the info - Yes, I'm in Europe (Germany) and E10 will replace the RegularE5 which we have now.
In the End there will be a significant price difference between the RegularE10 and the PremiumE5.
That's important for a thirsty cat's owner...
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post #7 of 17 (permalink) Old 03-04-2011, 07:56 AM
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Assuming the German government is only taxing the Petro side of the fuel so getting the highest concentration of ethanol could actually be cost effective for you.

If available you can expect to send about $1200USD for all the modifications to run E85; though I don't know what the inspectors will think of it? I can't imagine (no offense) that a 18y/o car will score too high to begin with.

If all else fails get a bigger hammer!

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post #8 of 17 (permalink) Old 03-04-2011, 08:07 AM Thread Starter
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My secound Cougar, a Cougar 5.0L with low milages, I have a equiped with LPG (liquid petroleum gas), its running well, clean and cheap - unfortunately my V6 has to old to do so.
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post #9 of 17 (permalink) Old 03-04-2011, 09:00 PM
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I switched to E85 in 2008.
The only fuel system changes were 225lpm fuel pump and 60 lb. injectors.
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post #10 of 17 (permalink) Old 03-04-2011, 09:08 PM
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Quote:
Originally Posted by r429460 View Post
I switched to E85 in 2008.
The only fuel system changes were 225lpm fuel pump and 60 lb. injectors.
Its stock besides that? 4.6 or 5.0

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post #11 of 17 (permalink) Old 03-05-2011, 12:15 AM
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Quote:
Originally Posted by r429460 View Post
I switched to E85 in 2008.
The only fuel system changes were 225lpm fuel pump and 60 lb. injectors.
What kind of fuel mileage are you getting out of that?

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post #12 of 17 (permalink) Old 03-05-2011, 06:56 AM
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What about tune?

If all else fails get a bigger hammer!

93 SC Tbird
MPII w/ Plenum,90mm MAF, 85mm TB, 40# Injectors, 255 lph FP, Double IC w/fan, SCT Chip (Tuned by Jerry),3/4" Raised Top, F52-TT TC, SilverFox AOD 550, SPT-R VB
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post #13 of 17 (permalink) Old 03-05-2011, 10:01 AM
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Quote:
Originally Posted by CougarCGN View Post
My secound Cougar, a Cougar 5.0L with low milages, I have a equiped with LPG (liquid petroleum gas), its running well, clean and cheap - unfortunately my V6 has to old to do so.
You near Manheim? My girlfriend born and 25 years from there!

Viel Glück mit Ihrem Cougar!

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post #14 of 17 (permalink) Old 03-05-2011, 07:06 PM
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tone of course.
312 rwhp.
12.48 @ 108.
MPG was 14 highway with the old engine.
Running e85 for high octaine with13.5 to 1 compression ratio.
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post #15 of 17 (permalink) Old 03-10-2011, 03:29 AM Thread Starter
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Meanwhile I've got the official confirmation from FORD that I could use 10% Ethanol or 5%Methanol with a minimum of 87 Octan without any problems.
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post #16 of 17 (permalink) Old 03-10-2011, 08:45 AM
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Like someone mentioned above, the lines inside the tank are rubber, and may fall apart due to the ethanol.

There are also a bunch of vent lines that will get vapor, and will disintegrate over time.

I've had to replace them on 2 cars so far, and we're only seeing ~10% ethanol.

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post #17 of 17 (permalink) Old 03-31-2011, 04:14 AM
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yes but laughably the evap lines were never "fuel safe". replacing rubber lines on a 5.0 pushrod car would be considered maintenance. I replaced all my vac lines on my 96 with silicone from my local Catapillar dealer. its cheep and very high quality. Any heavy equipment or turbo diesel shop/dealer should have all the sizes and lengths ever needed.
E10 is totally safe and in the winter I splash in around 2 gallons(close to 7 litres) of e85 then fill the tank with 93 octaine dino juice.

No matter how good she looks. No matter how cool she is about your "stuff". No matter how great she is in bed, someone somewhere is sick of her crap.


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