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E85 eating main bearings???

Discussion in 'The Distillery' started by bambinov8, Jan 18, 2012.

  1. MalcolmV8

    MalcolmV8 Well-Known Member Established Member

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    Plumbed back like stock. I tried to make that truck as factory looking as possible. It had PCV, EGR, cats etc. If I remember right the passenger's side valve cover had a hose that went to the intake tube between the air filter and throttle body and the lower intake at the very back of the motor had a wire mesh screen with a PCV valve sitting right on top of it with a hose that went to... I forget. I think the upper intake behind the TB but can't remember exactly now and don't have my pics handy to reference.
     
  2. rfiresnake

    rfiresnake Member Established Member

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    I'm running e85 on my 03 kenne bell supercharged cobra and i drive the car around 3000 miles a year. I used to change my oil once a year on gas and changed up to every 6 months on e85. Is this good enough? I'm running 5w30 amsoil
     
  3. Vnmous1_04

    Vnmous1_04 InFamous Racing Established Member

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    I was just suggested by the Amsoil rep to use the 10W-30 Signature Series oil and you'll be fine. :rockon:
     
  4. UnleashedBeast

    UnleashedBeast Engine Lubrication Guru Established Member

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    5W-30 Signature series is fine for year round performance, but unless you are cranking the car in sub 32*F weather more than once a day, you can even use 10W-30 to gain better shear stability and lower NOACK volatility. 10W-30 ATM Amsoil is my year round oil of choice in the south.

    Not taking away from 5W-30 at all, it's still a great lubricant.
     
  5. me32

    me32 BEASTLY SHELBY GT500 TVS Moderator

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    i will be trying the mobil 1 5w-40 next.but look at my oil reading. mine has no issues with E85.
    here is mine with 3200miles

     
  6. timspony

    timspony TVS Powered Established Member

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    ..after re-reading this thread (again), Im going to use RP HPS 5w30 this season! :)
     
  7. 04sneaky_snake

    04sneaky_snake Member Established Member

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    I have always used RP HPS 5w-30 and never seen a problem with cold temps. No odd sounds, no start up problems, runs just the same as it does in 80* weather! Definitely recommended!
     
  8. BADASS03SVT

    BADASS03SVT Well-Known Member Established Member

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    Mobil 1 5w30 Syn for the last 8 years on my stock motor. beginning of 2011 (April) I switched to E85. In June I started getting water in the oil (unrelated)

    this is how my oil looked in June when I changed it

    550cfbaf.jpg
    c9ecdc09.jpg

    and I continued to run the car ALL season till October. Everytime i raced it I changed the oil when I got home. Put about 100 1/4 mile passes on it in 2011. Here are my main bearings when I tore it down

    DSC_5921.jpg
    DSC_5912.jpg

    I had a crack in the block so it wasnt E85....but Mobil 1 and E85 and my bearings looked great after 33k miles and 8 years
     
  9. MalcolmV8

    MalcolmV8 Well-Known Member Established Member

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    Even walmart oil would not give you odd sounds or problems starting up.
     
  10. UnleashedBeast

    UnleashedBeast Engine Lubrication Guru Established Member

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    If anyone buys oil from Wal Mart, take my advice on this one.

    Use Mobil 1 10W-30 Extended Performance. It's only 5 more dollars per 5 qt. jug, and well worth the investment.
     
  11. me32

    me32 BEASTLY SHELBY GT500 TVS Moderator

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    More proof showing that its bull shit saying E85 eats bearings
     
  12. bambinov8

    bambinov8 600WHP LOL Established Member

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    Why is so hard to read man ?? This informative thread has spread in other mustangs forums and this issue main topic is DD cobras on e85 where u drive EVERYDAY AND YOU THINK OR THOUGHT AN 3K MILES OIL CHANGE WAS STILL THE THE RULE TO FOLLOW NOT THE GUY U REFERRING TO (BADASS03SVT) ,IN CONTRAST OF FRESH OIL BEHAVIOR BEFORE HE RACES HIS CAR HENCE NOT AFFECTING THE TBN OF THE OIL AS MUCH AS YOU WOULD DRIVING EVERYDAY ON ETHANOL ..if you read and search you going to find out why A DD CAR on E85( NOT YOUR MODERN FFV) needs a higher much higher TBN ON THE OIL USED and oil intervals needs to come way sooner than your regular 3k miles ..most of the guys here use their toys for weekend events always using a fresh new oil before they race ... Read my friend, It is believed that during cold starts, uncombusted ethanol might migrate past the piston ring. If this happens, it could result in something called cylinder wall washing. Cylinder wall washing reduces the lubrication on the cylinder wall and could dilute the oil if it runs into the crankcase.
     
    Last edited: Feb 28, 2012
  13. bambinov8

    bambinov8 600WHP LOL Established Member

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    We all know that E85, when compared to “normal” gasoline (which is about 10% ethanol), is fairly acidic. This acid has the ability to neutralize some of the lubricating ability of normal engine oil, but only mildlyso. In fact,I would guessthat regular old motor oil would breakdown more from heating and cooling over the course of 5,000 miles than it ever would from the acid inherent in E85. Normal E85 isn’t much of a threat to engine oil – the issue occurs when normal E85 becomes contaminated with water.

    The combustion process of water-contaminated E85 will lead to the formation of a strong acid (formic acid, to be exact). This acid, left unchecked, has the ability to cripple an engine because it can 1) dramatically reduce the lubricating ability of normal motor oil and 2) eat away at the high-tolerance metal engine components. E85 with water contamination, in a normal engine, is dangerous stuff. Changing the oil frequently is a good insurance policy for a normal engine running E85, and this is probably the basis of this recommendation.

    HOWEVER, if you’re running E85, you’re probably not driving a normal engine! Vehicles that are factory capable of running E85 have specially coated pistons and valves that are less susceptible to acid wear. Moreover, if you’re driving your factory flex-fuel vehicle with E85 and you’re using the factory recommended E85 oil blend, your oil has an extra dose of detergents that designed to neutralize any acid that might form
     
    Last edited: Mar 3, 2012
  14. me32

    me32 BEASTLY SHELBY GT500 TVS Moderator

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    Well then I must be old school because I still believe in 3k oil change. Even in my dd I use full syn an do about 4k or so on the oil change. I understand what you are saying but with proper oil an oil changes it won't be an issue. The only problem is the oil break down which would cause the bearing to fail or worn out. So once again I still call the E85 eating bearings bs.
     
  15. gt347mustang

    gt347mustang Well-Known Member Established Member

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    [​IMG]
     

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