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Home / Is Drive Lube The Same As Gear Lube Is "Drive Oil" The same thing as lower gear lube? | Boating Forum

Is Drive Lube The Same As Gear Lube Is "Drive Oil" The same thing as lower gear lube? | Boating Forum

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Drive lube — Rinker Boat Company
Drive lube — Rinker Boat Company

I asked the Mercruiser Customer Rep if water getting in is a problem, and he said that the Mercury High Performance Gear Lube was made to work 

Mercruiser Drive Lube - Tips For Efficiency: Worldly Repository of
Mercruiser Drive Lube - Tips For Efficiency: Worldly Repository of

Although drive lube and gear lube have the same function-lubrication-they are not the same. They have different viscosity and weights, 

What drive lube do you use? | Club Sea Ray
What drive lube do you use? | Club Sea Ray

I was about to post the same thing. Mercruiser fluids are “sufficent”, not optimal. You cant buy a finer true synthetic marine outdrive gear 

Gear Lube vs Drive Oil vs Outboard Oil?? | Club Sea Ray
Gear Lube vs Drive Oil vs Outboard Oil?? | Club Sea Ray

This is the drive lube you should be using. Merc recommends against mixing other oils and high performance gear lube. The specifications for the 

REV X DRIVE-H 10W30 Marine Outdrive Gear Lube - 1 qt. - RevXOil
REV X DRIVE-H 10W30 Marine Outdrive Gear Lube - 1 qt. - RevXOil

DRIVE-H Outdrive Lubricant is the CURE for lubrication-related failures in marine drives and lower units. It is a highly additized semi-synthetic lube available 

WHAT TYPE OF OIL GOES IN MERCRUSIER DRIVE LUBE
WHAT TYPE OF OIL GOES IN MERCRUSIER DRIVE LUBE

Quicksilver Hi-Performance gear lube or 90 weight gear lube. Here is the link to Quicksilver brand from Mercury Marine.

What is a drive lube monitor? - Boats
What is a drive lube monitor? - Boats

That little tank is the overflow reservoir for gear lube in your outdrive. There should be a fill line on it, there's no need to fill it above that.

Update on Gear Drive Lube Analysis Findings - Offshoreonly.com
Update on Gear Drive Lube Analysis Findings - Offshoreonly.com

Here are the virgin samples of each. I find this info interesting as I was told by the dealers how they were the same and no different except for packageing.

Is "Drive Oil" The same thing as lower gear lube? | Boating Forum
Is "Drive Oil" The same thing as lower gear lube? | Boating Forum

Gear oil = Drive oil, Outdrive oil, Sterndrive oil, Etc. Gear oil DOES NOT = Outboard oil that's for outboard engines that are 2 stroke :) 

Drive Lube and Gear Lube | Boating Forum - iboats Boating Forums
Drive Lube and Gear Lube | Boating Forum - iboats Boating Forums

Drive lube and gear lube the same. However I would take that bottle back and exchange it for synthetic blend if it isn't.