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Castrol Hypoy C 80w-90?

Discussion in 'Technical Chat' started by Mossy, Apr 6, 2013.

  1. Mossy

    Mossy [OP] Mechanic for Honda

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    billy
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    ProComp lift Borla exhaust Borla air filter Nfab bars
    Anybody using it? I have a 97 sr5. Any opinions or suggestions of something better?
     
  2. Mossy

    Mossy [OP] Mechanic for Honda

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    ProComp lift Borla exhaust Borla air filter Nfab bars
    Anyone?
     
  3. Mossy

    Mossy [OP] Mechanic for Honda

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    ProComp lift Borla exhaust Borla air filter Nfab bars
    Bump
     
  4. azreb

    azreb Geezer

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    From what I have read on the web it sounds like an acceptable lube for differentials. The advertisements say it is intended for manual transmissions, also. However, it is a GL-5 lube. From previous research, I decided against using GL-5 gear oil in my manual transmissions. The sources I saw (sorry--no links. I did this research a year or so ago) said that the additives that make the GL-5 work well in differentials contain chemicals that are corrosive to copper and brass. The syncros in manual transmissions are brass.
    YMMV. I have seen other brands of GL-5 gear lube with manual transmissions mentioned in the application notes, but I choose to not take any chances. I found a synthetic GL-4 lube that has worked well for me.
     
    Last edited: Apr 16, 2013
  5. KenLyns

    KenLyns Lord of War

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    All-Pro Front Bumper, All-Pro UCAs, Icon ET Coilovers, Icon VS Rear Shocks, TSB Leafs, Timbren Bumpstops, CBI Sliders, ViAir Compressor, Klearz LED 3rd Brake Light, Pop-N-Lock Tailgate Handle, Husky Front Flaps, Deeza HD Sway Bar Links
    FYI Toyota owner's manual specifies GL5 for manual transmissions for all years Tacos.

    Can you even find GL4 easily in auto parts stores?
     
  6. azreb

    azreb Geezer

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    camper shell, platform to replace rear seats.
    The manual for mine recommends GL-4 or GL-5. For the reasons I mentioned above I will stick with the GL-4. I found Redline MT90 GL-4 on the web.
     
  7. BUZZCUT

    BUZZCUT Well-Known Member

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    Amsoil Severe Gear 75w-90
     
  8. Jetman1979

    Jetman1979 Well-Known Member

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    castrol makes some good lubes. I have used there engine oil for years I say go for it.
     
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