Thread: E85/Oil

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  1. #1 E85/Oil 
    GTP Level Member Dee23's Avatar
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    Anybody knows if the L67 has issues with E85 fuel mixing with the engine oil? If so is there a fix for this other than running a more thicker more expensive oil?
    Not your average grocery getter, but theres always at least two things on the list.... 10w-30 Castrol Titanium and Shell 91 premium mixed with a lil 100 octane racing gas......
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  2. #2 Re: E85/Oil 
    GrandPrix Junkie SgtMarshal's Avatar
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    why would engine oil ever mix with fuel?
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  3. #3 Re: E85/Oil 
    Killa Bee Scottydoggs's Avatar
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    98 Buick Regal GS, F body brakes, Caddy STS wheels, tinted tails L36 bottom end, lightly ported heads, 1.95 roller rockers, headers, gen 5 N* 3.0 pulley, FSIC, 42 lb injectors, a BrandonHall rebuilt trans, DHP tuned and AEM water/Meth injection https://goo.gl/gpV5kW
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  4. #4 Re: E85/Oil 
    GXP Level Member GTPpower's Avatar
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    It's not going to mix unless you have mechanical problems.


    2001 GTP Drag Car - XPZ, Tischler heads, Upsidedown M90 IC'd, e85, Gen V, 2.3 w/ 5%OD
    2005 F350 6.0 - studded, deleted, tuned
    2001 GTP - cam, headers, nitrous, stock trans - 11.83 @ 116 <$2k in mods - sold
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  5. #5 Re: E85/Oil 
    GXP Level Member Turbocharged400sbc's Avatar
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    Ha
    Cold start a 127 lb pintle type injector e85 car and tell me the cylinder washdown isn't contaminating the oil
    ~James~ Psychotic Gearhead
    projects: 84 Cressida waGN~ 90 LN3 3800, equal length headers, T70, 89 700r4, misc parts,
    1994 Oldsmobile 442 (462ci-4wd-2 engines) L67/4t80e^2,
    00 Turbo Regal 608 fwhp 575ftlbs at 5500rpm, 98 WhippledRiv, 97 GTP
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  6. #6 Re: E85/Oil 
    Turbo is the way to go. Fivefingerdeathpunch's Avatar
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    Run the cheapest **** they sell, I did that for 5 years and never had a single problem.

    Doubtful he's running dem 127lb/hr injectors so the engine isn't going to care at all what oil he uses.

    SMGPFC Member #1
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  7. #7 Re: E85/Oil 
    GXP Level Member Turbocharged400sbc's Avatar
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    Rottella t6 5w40 diesel oil for us turbo gays
    ~James~ Psychotic Gearhead
    projects: 84 Cressida waGN~ 90 LN3 3800, equal length headers, T70, 89 700r4, misc parts,
    1994 Oldsmobile 442 (462ci-4wd-2 engines) L67/4t80e^2,
    00 Turbo Regal 608 fwhp 575ftlbs at 5500rpm, 98 WhippledRiv, 97 GTP
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  8. #8 Re: E85/Oil 
    GXP Level Member GTPpower's Avatar
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    Lol. Looks to me like his car is pretty much stock.


    2001 GTP Drag Car - XPZ, Tischler heads, Upsidedown M90 IC'd, e85, Gen V, 2.3 w/ 5%OD
    2005 F350 6.0 - studded, deleted, tuned
    2001 GTP - cam, headers, nitrous, stock trans - 11.83 @ 116 <$2k in mods - sold
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  9. #9 Re: E85/Oil 
    GTP Level Member Dee23's Avatar
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    I gotta a friend with a 2015 EVO putting down 700awhp and hes running E85. When he checks/changes the oil it straight smells like E85 and the oil is very thin. Not sure why he has this issue when the car only has 60k miles on it. So i was curious if the L67 was known to have this problem while on E85
    Not your average grocery getter, but theres always at least two things on the list.... 10w-30 Castrol Titanium and Shell 91 premium mixed with a lil 100 octane racing gas......
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  10. #10 Re: E85/Oil 
    Turbo is the way to go. Fivefingerdeathpunch's Avatar
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    Think of how much fuel 700whp needs compared to the sub 300whp that you'll likely put out.

    What doesn't get burned goes into the oil little by little.

    SMGPFC Member #1
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  11. #11 Re: E85/Oil 
    GTP Level Member Dee23's Avatar
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    Right, i understand if a motor has a lil blow by or if the PCV system is not working efficiently but i was just wondering if anyone here has experienced this problem with a L67 while running E85
    Not your average grocery getter, but theres always at least two things on the list.... 10w-30 Castrol Titanium and Shell 91 premium mixed with a lil 100 octane racing gas......
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  12. #12 Re: E85/Oil 
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    I haven't had an issue with the stock 33# injectors or 60# injectors so I would say unless your rings are slap wore out then you'll be fine.

    Jeff
    An engine is an engine no matter the size.... I think Dr. Seuss said that... or maybe it was Big Weld....
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  13. #13 Re: E85/Oil 
    GXP Level Member GTPpower's Avatar
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    I put on a ton of miles with both 42 and 60 lb injectors. Never had a problem.


    2001 GTP Drag Car - XPZ, Tischler heads, Upsidedown M90 IC'd, e85, Gen V, 2.3 w/ 5%OD
    2005 F350 6.0 - studded, deleted, tuned
    2001 GTP - cam, headers, nitrous, stock trans - 11.83 @ 116 <$2k in mods - sold
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  14. #14 Re: E85/Oil 
    GXP Level Member Turbocharged400sbc's Avatar
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    Pcv>breather for reducing oil contamination with e85
    ~James~ Psychotic Gearhead
    projects: 84 Cressida waGN~ 90 LN3 3800, equal length headers, T70, 89 700r4, misc parts,
    1994 Oldsmobile 442 (462ci-4wd-2 engines) L67/4t80e^2,
    00 Turbo Regal 608 fwhp 575ftlbs at 5500rpm, 98 WhippledRiv, 97 GTP
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