Gear oil Royal Purple vs. Lucas Oil

Discussion in 'Boating Discussion' started by 4v1df12h1ng, Oct 30, 2011.

  1. 4v1df12h1ng
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    I have Volvo Penta DP-H outdrive (D4-260), it’s time to replace gear oil for the first time. Would like your opinion on synthetic gear oil by Royal Purple vs. Luca Oil (75W-90 GL5). Which one is better in regards to long lasting, lubrication and ware? Have you used any one you recommend and why? Oil is expensive $15 (Lucas) $20 (RP) per qtr. have not used RP but used Lucas as motor oil additives... Thanks for your feedback...
  2. Staged
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  3. Double Z
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    I would use what Volvo say's to use.
  4. BloodyL
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    royal purple is the shit in my harley
    I would expect it to be as good or better in a low temp set up.
  5. 4v1df12h1ng
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  6. 805gregg
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    Amazing, a report by Amsiol has Amsoil as the best.

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