Well, I guess our experience has been different than some. Viscosity is not the only thing that makes a lube perform well. Otherwise we would run Crisco in my differentials. LOL . Seriously, my Tundra is a 4wd with 240k+ miles on it. We tow constantly with it and we've been all over the country towing. Mountains, you name it. The rear gears/bearings look the same as they did when we installed the Alisyn years ago. Same goes with the Mercury gearcases. We've run one on a 2000lb Gambler for a number of years. Its a Lake /Play boat. He runs it hard. 91+mph. And the gears/ bearings looked great the last time we installed seals. Fuel economy and rpm are up on the boat and economy on the truck. Seems fine for us. Expensive stuff for sure. I'm just curious as to how well it does with water in it. Mercury's lube is excellent even if it gets some water in there.
Basically the gears are sliding against each other. Coefficient of friction and wear are reduced because its slipperier than the heavy oils. The lighter viscosity allows for less drag as well. Mix it if you're worried.
Basically the gears are sliding against each other. Coefficient of friction and wear are reduced because its slipperier than the heavy oils. The lighter viscosity allows for less drag as well. Mix it if you're worried.
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