Effects of ethanol on 3.2 911s
06-20-2014, 11:24 AM
#31
Rennlist Member
Yes, leaded. And split hairs or no, my car runs great on it.
And Upier, while a well tuned chip may compensate for octane levels, the lack of ethanol is more of a fuel system preservation measure. Ethanol is basically alcohol, which absorbs and holds water, which corrodes fuel systems and degrades rubber seals within at a higher rate.
-C
And Upier, while a well tuned chip may compensate for octane levels, the lack of ethanol is more of a fuel system preservation measure. Ethanol is basically alcohol, which absorbs and holds water, which corrodes fuel systems and degrades rubber seals within at a higher rate.
-C
06-20-2014, 12:35 PM
#33
Rennlist Member
06-20-2014, 03:06 PM
#34
Rennlist Member
Steve, is there any adverse effect on rubber fuel lines using Stabil or Marine Stabil. I overheard a couple of guys talking about this recently and they said it deteriorates the rubber and contaminates the fuel system. Any words of wisdom?
06-24-2014, 03:12 AM
#36
RL Technical Advisor
The people you overheard inverted the problem: its ethanol that attacks the elastomers in the fuel system and the whole idea behind Stabil is to prevent this from happening.
06-27-2014, 11:26 AM
#38
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On my SC, not 3.2, but from this thread I found a no-ethanol pump around me to try it. Thanks! Car definitely has more power and doesn't smoke as much on startup anymore! I'm going to run one or two tanks to see what difference the fuel makes for mileage. With ethanol I get 18/24.
06-27-2014, 02:16 PM
#40
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It is unfortunate that the politicians have gone mad in California. I guess it's a tradeoff for the incredible weather, scenery and roads. I would move back in a heartbeat for the right opportunity.
06-27-2014, 10:17 PM
#41
Rennlist Member
Pure gas sucks for detonation. Thats why they used to add lead... for knock resistance. The reason for the massive power loss in the 70's was due to the removal of lead since it destroys cats. They couldn't run high compression engines anymore, turbos were an extention of that which is also part of the reason the Turbo was not sold in the US at that time.
Ethanol is the "cleanest", commercially availble knock resistant additive right now, and its cooling properties make it better than lead in some applications. This is part of the reason why we have seen the rise of the HP wars again.
Last edited by ztnedman1; 06-27-2014 at 10:32 PM.
06-27-2014, 10:19 PM
#42
Instructor
Pure-gas.org is the best list I've found.
-C
07-14-2014, 02:51 AM
#43
Ethanol is the work of the devil. Eth gas can "crack"(break down and separate) in just 2-3 weeks. Then you have water, alcohol and some really crappy low octane "gas" left in the tank. It just kills small engines like weed wackers, chain saws and genies. Cars seem to be more resistant to it but it still works over the seals and any non-metal parts in the fuel system. It's scary to run in an air cooled P motor too. If you ever wondered why the red Stabil doesn't work with eth-gas it's because it was designed for pure gas. The blue "Marine" Stabil and Seafoam will greatly increase the time it will take for the eth-gas to "crack" and offers protection(like Steve says) but pure gas is still a better choice if you can find it.
08-20-2014, 01:10 PM
#44
Rennlist Member
Dumb follow-up questions ensue:
I found ethanol-free gas locally, and it's about 30-40 cents/gallon more expensive than ethanol premium. Would you fill with this all the time? Some of the time? Never? And how would that impact your recommendation for Stabil?
Thanks!