Gear oil Royal Purple vs. Lucas Oil

4v1df12h1ng

Sensei
Feb 22, 2008
496
61
North County
Name
Who
Boat
yes pls
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...
 

BloodyL

Throwing everything I got
Jan 4, 2009
1,258
301
Placentia
Name
Mick
Boat
The Beach
royal purple is the shit in my harley
I would expect it to be as good or better in a low temp set up.
 

805gregg

I've posted enough I should edit this section
May 7, 2009
664
7
Ojai, Ca
Name
Gregg
Boat
1991 Skipjak 262 "Mischief"
Amazing, a report by Amsiol has Amsoil as the best.