Where to buy Merc High perf. gear lube

What is the GL rating and weight rating of the Merc Hi-Po Lube? Mobil One LS 75w90 gear lube carries an API GL-5 rating, and has served me well for 15 years. Bel-Ray makes very good stuff, by the way; we've used their shock oil in oour race cars inthe past.
 

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My uncle gave me a couple gallons of Belray Polar gear lube he got from work that I use in my jeep diffs. They use it in mining equipment because it is supposedly more water resistant. It's not green, its light brown though. I wonder if they just dye the merc stuff and jack up the price?
 
My uncle gave me a couple gallons of Belray Polar gear lube he got from work that I use in my jeep diffs. They use it in mining equipment because it is supposedly more water resistant. It's not green, its light brown though. I wonder if they just dye the merc stuff and jack up the price?

Polar is a mineral-based lube. The blue stuff is full syn.
 
I'm fairly certain that the Merc blue hi-po lube is an SAE 75W-90 lube, which is the equivalent to ISO VG 150.

The most closely matching Bel-Ray gear lubes are:

(1)Bel-Ray SE2 Lubricant, P/N: 63700, ISO VG 150.
Synthetic General Industrial Lubricant.
A technologically innovative synthetic extra heavy-duty gear lubricant
formulated for all types of gearing under severe temperatures and
loads. Effective for plain and roller bearings. See Product Data Sheet
for name grades, temperature ranges and application instructions.

(2)Bel-Ray Synthetic Gear Oil, P/N: 66880, ISO VG 150
Synthetic General Industrial Lubricant.
Totally synthetic hydrocarbon and ester combinations exhibiting
outstanding Extreme Pressure and anti-wear properties as well as
excellent viscosity and temperature properties. This lubricant exhibits
low coefficient of friction in addition to being compatible with mineral
oils.
 
This guy wasn't really very helpful. :rolleyes:

On Thu, Nov 5, 2009 at 2:45 PM, TSQ <TSQ@belray.com> wrote:

Nick,

We recommend you purchase the Mercury Marine Gear Lube as it is specifically formulated for the application.

Regards,

TSQ
 
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