engine wear with e85?
There's a good link to some engine oil analysis in one of the threads talking about oil and E85. That thread has a link to another evo forum where a guy did a bunch of oil analysis with different kinds of oil. It's very informative and gives you an idea of what to run. After reading the thread, you will find out that engine wear is perfectly fine after 5K of abuse. No worries if using the right oil. I'm running two catch cans on top of using some good oil, and the catch cans capture all the condensation/oil mix.
when I was running pump gas only, straight oil would come out of the cans. Now when running E85 for a long period, without going back to gas (few months), the "oil" draining from the catch cans looks like coffee colored mud. Highly reccommend catch cans if running high boost and sustained E85 use. I have absolutely no oil in any IC pipes, manifold, etc.
I personally am using Castrol Syntec 5w-40.. It's free at work and had a good oil analysis.
when I was running pump gas only, straight oil would come out of the cans. Now when running E85 for a long period, without going back to gas (few months), the "oil" draining from the catch cans looks like coffee colored mud. Highly reccommend catch cans if running high boost and sustained E85 use. I have absolutely no oil in any IC pipes, manifold, etc.
I personally am using Castrol Syntec 5w-40.. It's free at work and had a good oil analysis.
Last edited by lan_evo_mr9; Jul 3, 2009 at 04:05 PM.
You can limit the wear by using the correct oil on E85. Of course there will be more stress when upping the power/boost- just like any car. But more stress does not neccessaryily have to equal more wear. Stress and wear are two different categories.
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Thats a retarded amount of water, hell, if it was that much It would run purely on water as the water is heavier than the e85 and won't stay blended as it will all sink to the bottom of the tank, deff not a worry.
And those talking of oil analysis, it is deff a worth while investment every once in a while.
And those talking of oil analysis, it is deff a worth while investment every once in a while.
Last edited by 2LOFD3ATH; Jul 4, 2009 at 08:08 PM.
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"For ethanol contaminated with larger amounts of water (i.e., approximately 11% water, 89% ethanol, equivalent to 178 proof ethanol), considerable engine wear will occur, especially during times while the engine is heating up to normal operating temperatures. For example, just after starting the engine, low temperature partial combustion of the water-contaminated ethanol mixture takes place and causes engine wear. This wear, caused by water-contaminated E85, is the result of the combustion process of ethanol, water, and gasoline producing considerable amounts of formic acid (HCOOH, also known as methanoic acid and sometimes written as CH2O2). In addition to the production of formic acid occurring for water-contaminated E85, smaller amounts of acetaldehyde (CH3CHO) and acetic acid (C2H4O2) are also formed for water-contaminated ethanol combustion. Of these partial combustion products, formic acid is responsible for the majority of the rapid increase in engine wear."
is this a concern on normal warm up? or is there only a worry if the e85 gets contaminated?
is this a concern on normal warm up? or is there only a worry if the e85 gets contaminated?
Any insight would be greatly appreciated.
Thank you,
James
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