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Thread: Best fluid for 4l80e

  1. #1
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    Default Best fluid for 4l80e

    Has anybody got a fluid recommendation? Especially for heat reduction. On E4OD's using some 10w30 mobil one helps with heat but then that tranny gets real hot. TIA
    Adam In Gautier
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    98 GMC C3500 6.5TD DRW 4L80E auto 210K
    Custom gooseneck ball
    Opened up air box, stock filter
    new injector pump / injectors / PMD remoted to fender with huge pentium cooler
    Heath MaxTorq ECM
    Straight Pipe exhaust
    4.11 Posi Lock

  2. #2
    Oompa Loompa docdray's Avatar
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    dexron 6, not only new tranny's but retro to mid 70's I believe. its synthetic and I always add a bottle of lubegaurd. have not checked amsoil or others.
    94 c3500, 6.5td, 4l80e rebuilt, relocate pmd, heath chip, lp and x-over pipe, 97 cooling upgrade, afe cold air intake, marine injectors, bypass ops, guages-tranny temp,egt,boost,fuel press-aux fuel tank, 410 changed to 373 gears, 4" sraight exhaust w/new down pipe, modified fuel cap, high idle switch, second tranny cooler, battery mod, gm-8 w/homemade t/m

    2006 1500 suburban 4wd, 5.3l stock.

    "You have a keen sense of the inherently obvious"

    Bubba Army-FTE

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    Great I did not know about dex 6. Something odd to me when I tried mobil one tranny fluid in a E4od it seemed to shift slower, like you would expect if the weight were thicker in a manual tranny. With dex 6 did you notice any change in shifting? Also did your guage show any temp decrease? TIA
    Adam In Gautier
    __________________
    98 GMC C3500 6.5TD DRW 4L80E auto 210K
    Custom gooseneck ball
    Opened up air box, stock filter
    new injector pump / injectors / PMD remoted to fender with huge pentium cooler
    Heath MaxTorq ECM
    Straight Pipe exhaust
    4.11 Posi Lock

  4. #4
    Oompa Loompa docdray's Avatar
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    not noticeable, however lubegaurd got a toasty tranny from middle of new mexico back to fort worth after burning fluid. I have noticed a lighter wallet after switching to dex VI, $6.+ a quart. I have not looked at aftermarket synthetics yet,only what GM specs on all auto trannys.
    94 c3500, 6.5td, 4l80e rebuilt, relocate pmd, heath chip, lp and x-over pipe, 97 cooling upgrade, afe cold air intake, marine injectors, bypass ops, guages-tranny temp,egt,boost,fuel press-aux fuel tank, 410 changed to 373 gears, 4" sraight exhaust w/new down pipe, modified fuel cap, high idle switch, second tranny cooler, battery mod, gm-8 w/homemade t/m

    2006 1500 suburban 4wd, 5.3l stock.

    "You have a keen sense of the inherently obvious"

    Bubba Army-FTE

  5. #5
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    Lubegard is cool stuff, I stopped a bad shudder in a E4OD with it and also added just a little to a cranky noisy steering box and both stopped their anoyances.
    Adam In Gautier
    __________________
    98 GMC C3500 6.5TD DRW 4L80E auto 210K
    Custom gooseneck ball
    Opened up air box, stock filter
    new injector pump / injectors / PMD remoted to fender with huge pentium cooler
    Heath MaxTorq ECM
    Straight Pipe exhaust
    4.11 Posi Lock

  6. #6
    Northern Lights Sunshine's Avatar
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    Quote Originally Posted by docdray View Post
    not noticeable, however lubegaurd got a toasty tranny from middle of new mexico back to fort worth after burning fluid. I have noticed a lighter wallet after switching to dex VI, $6.+ a quart. I have not looked at aftermarket synthetics yet,only what GM specs on all auto trannys.
    Hi, docdray can you emphasize a littel more for me about the lubegaurd, i don`t think i can buy it here, never heard of Dex 6 thats new to me.. maybe it hasn`t landed here, yet,, you know the Big Oil Country..
    Last edited by Sunshine; 12-16-2008 at 03:41 PM.
    Paul...

    95..6.5TD "F" 4x4 Chevy Suburban K1500,4L80E,With A 3.42,posi...Heath`s PLG Empro,
    HO Injectors...Remote FSD..2.5" X-Over 3"-4" exhaust 5" to Tell a Tail..., Feed The Beast mod...Walking J`s Fittings Kit......
    3 DiPricol Gauges on "A" pillar...
    NewRocker Buttons @ 120mil/195Km...
    Fluidamper... Heath`s HD Cooling System Upgrade... Lube Specialists Oil Cooler kit....
    A-Team Turbo... no waste gate...
    Customized Upper Intake, 1" Custom "Throttle Body" spacer "Thanks to member Paveltolz"--
    GMTDScan Tech user "uff" #126

    1955 MK VII "M" Jaguar...190 hp. 6 seats, auto gear, came from California 2 Norway 1988 NO RUST...

  7. #7
    Registered User thedole's Avatar
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    How would the Royal Purple ATF be in these? That's what I was thinking about putting in there next time..
    97 k2500 regular cab worktruck that is just about stock for now except for a diamondeye exhaust.

    Big plans but I'm kept busy just keeping her road legal and running..

  8. #8
    Oompa Loompa docdray's Avatar
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    sorry for long post in advance,
    lube gaurd has been out for quite a while. it is a friction modifier and fluid conditioner(helps reduce friction, extend life of fluid and tranny) look up on web.
    dexron VI was developed by GM of Canada in conjunction with Petro-Canada and Afton Chemical Corporation. The main difference between Dexron-VI and prior Dexron releases is the added low-temperature performance and shear stability due to its build and lowered viscosity. (6.0cst) It is considered to be lifetime fill and is expected to last 100-150K under all service conditions

    DEXRONŽ-VI ATF
    General Motors Powertrain has recently upgraded to DEXRONŽ-VI ATF with the start of 2006 vehicle production.
    Only 2005 and prior models that currently use DEXRONŽ-III may use DEXRONŽ-VI as a replacement.
    All 2006 and future models that use DEXRONŽ-VI are to be serviced with DEXRONŽ-VI fluid only.
    DEXRONŽ-VI is an improvement over DEXRONŽ-III in the following area:
    DEXRONŽ-VI
    Extended Factory Fill For Life 160,000 km (100,000 mi) For Cars and Light Duty Trucks*
    80,000 km (50,000 mi) (Severe Use) For Cars and Light Duty Trucks*
    Clutch Friction Stability Improved 100%
    Clutch Durability Due To Fluid Improved 120%
    Oil Film Thickness Increased 20%
    Fluid Oxidation Improved 100%
    Foam / Aeration Improved 150%
    Shear Stability Improved 200%
    * These ATF change intervals remain the same as DEXRONŽ-III for the time being.
    2006 Transmission Fill and Cooler Flushing
    Some new applications of the 6L80 six speed transmission will require the use of the J 45096 -- Flushing and Flow Tester to accomplish transmission fluid fill. It is highly recommended that the clean oil reservoir of the machine be purged of DEXRONŽ-III and filled with DEXRONŽ-VI.

    General Motors has introduced a new ATF specification it has termed DexronŽ VI. GM decided it needed to upgrade its ATF specification to accommodate the Hydra-Matic 6L80,
    its first 6-speed automatic. This fluid is the new service fill and factory fill specification for all Hydra-Matic GM transmissions. It will be used as a factory fill for all 2006 MY Hydra-Matic automatic transmissions starting on April 4, 2005, and it will be mandatory service fill by January 2007. DexronŽ III(H) or DexronŽ VI can be used for service fill until January 2007. DexronŽ III(H) approvals will be valid until December 31, 2006. DexronŽ VI is backward compatible with previous DexronŽ formulations. DexronŽ VI will be offered through GM Vehicle Care products in dealerships and service centers in Summer 2005.

    GM believes this new ATF is two to three times better than the best DexronŽ III(H) fluid on the market, today. Some of the enhancements of the DexronŽ VI include significantly improved shift performance and fluid durability as well as superior pitting protection, oxidation stability, foaming protection, and shear stability.



    also look at Redline D6 ATF Full Synthetic fluid, Mobil DEXRON-VI ATF, Allison Castrol TranSynd , Valvoline has a full synthetic Dexron VI, Royal purple GM - DEXRON VI no RP equivalent,
    94 c3500, 6.5td, 4l80e rebuilt, relocate pmd, heath chip, lp and x-over pipe, 97 cooling upgrade, afe cold air intake, marine injectors, bypass ops, guages-tranny temp,egt,boost,fuel press-aux fuel tank, 410 changed to 373 gears, 4" sraight exhaust w/new down pipe, modified fuel cap, high idle switch, second tranny cooler, battery mod, gm-8 w/homemade t/m

    2006 1500 suburban 4wd, 5.3l stock.

    "You have a keen sense of the inherently obvious"

    Bubba Army-FTE

  9. #9
    Northern Lights Sunshine's Avatar
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    Brilliant write up docdray.

    I have a headache maybe you can help with, putting the solenoids in the tranny found on the 1-2 solen, the star bolt is been messed up it seems from the factory coz no one else has been there..

    Got some idea how i can get this out, with having to drop the other piece as you know it`s round headed & there's not much room to work, i`v sort of ruled out drilling,as i feel it needs to be surgically clean there.

    The only thing i can think of is to re-test it if ok leave it there, as i was thinking about a Transgo upgrade when the warm weather arrives
    Paul...

    95..6.5TD "F" 4x4 Chevy Suburban K1500,4L80E,With A 3.42,posi...Heath`s PLG Empro,
    HO Injectors...Remote FSD..2.5" X-Over 3"-4" exhaust 5" to Tell a Tail..., Feed The Beast mod...Walking J`s Fittings Kit......
    3 DiPricol Gauges on "A" pillar...
    NewRocker Buttons @ 120mil/195Km...
    Fluidamper... Heath`s HD Cooling System Upgrade... Lube Specialists Oil Cooler kit....
    A-Team Turbo... no waste gate...
    Customized Upper Intake, 1" Custom "Throttle Body" spacer "Thanks to member Paveltolz"--
    GMTDScan Tech user "uff" #126

    1955 MK VII "M" Jaguar...190 hp. 6 seats, auto gear, came from California 2 Norway 1988 NO RUST...

  10. #10
    Oompa Loompa docdray's Avatar
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    will a pair of needlenose vise grips fit?, 2 other ways I have used-both can ruin bit- use JB weld to attach socket to bolt(smaller socket that way jb weld gets in torqhead slots), or tack weld when all else fails. I do not beleive an easy out will fit in there?
    94 c3500, 6.5td, 4l80e rebuilt, relocate pmd, heath chip, lp and x-over pipe, 97 cooling upgrade, afe cold air intake, marine injectors, bypass ops, guages-tranny temp,egt,boost,fuel press-aux fuel tank, 410 changed to 373 gears, 4" sraight exhaust w/new down pipe, modified fuel cap, high idle switch, second tranny cooler, battery mod, gm-8 w/homemade t/m

    2006 1500 suburban 4wd, 5.3l stock.

    "You have a keen sense of the inherently obvious"

    Bubba Army-FTE

  11. #11
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    Dexron VI seems a good alternative to the higher priced synthetic ATF s out there ( Mobile 1 etc ) . I have also had good results with Lubegard ( red in Dexron ) . I bought several bottles of it it when it got a Long Mfg stacked plate ATF cooler at www. bulkpart .
    Last edited by CtChevy427; 06-15-2009 at 10:26 AM. Reason: non vendor hot link removed, PM sent

  12. #12

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    Amsoil also sales a ATF for the Chevrolet/GMC. Ask the local oil guru! He will help you out and keep you on the road. ):h
    Marty

    2010 Chevrolet Tahoe LT

    1993 Chevrolet C3500 Crew Cab Dually, 2WD, NV4500. GM-8 with Turbo Master, 4" exhaust with 2 1/4 crossover, Walbro FRC-10-2, and pre-lift pump filter. Auto Meter Phantom fuel pressure, EGT, Boost, Transmission, and Rear Differential Gauges. Mag-Hytec rear diff cover. Filter-Mag RA365 on oil filter. PTW Battery Cable Kit. Fumoto Oil Valve. Feed The Beast Mod. K47!

    1995 Lance 990 Extended Cab(Under Construction!)


    Veterans of America Club, member #13.

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