What add pack might this be ??

[tdi-rick]

"While SIN RG110 has some limited slip properties it
is not designed for these types of differentials. SIN
Gear 75 or 80 should be used. Use with caution if
there is likely to be water contamination in the
gearbox or differential as the additive system is water
soluble and seal degradation may result.

The ultimate premium performance mineral gear oil
with synthetic-like heat resistance formulated with a
special, highly effective extreme pressure additive
system. Provides outstanding protection against heat
and reduces friction.
SIN RG110 meets API GL-5 and SAE 85W-110."

from here http://www.penriteoil.com.au/files/WA6VFQ12QB/SIN RG110.pdf

 

[cven]

I like this question. I was doing some gear oil research on here and reading about putting auto gear oil into a outboard lower unit. 1 of the things pointed out was the marine spec lube was made to mix with the water (if there is some) and still do its job protecting while a lube that stayed separated from the water may leave some parts without protection.

I would think the add packs in these applications would be different and along the lines of your question.

It seems odd for them to give that caution but I like the fact that they are being honest about there product and do not want it used in the wrong application.

I look forward to the "Smart Folks" on this board answering your question.

 

[tdi-rick]

Bump.

What GL-5 compliant additive packages are water miscible ?

Why would they use this style of additive package, and what advantages would it have of the most commonly used types for heavily loaded high speed hypoid diffs?

 

[MolaKule]

Unless their oils are synthetic glycol based (but they imply all their oils are mineral-based), I think they mispoke. Glycol-based fluids and additives are incompatible with mineral and synthetic base oils and additives.

Most additive packages I am aware of for mineral or synthetic base oils are oil soluble only.

Most differential fluids are designed to have a measure of miscibility for water and moisture intrusion.

Lubricants for Marine lower unit lubes and Marine gear boxe lubes use higher percentages of miscibility additives since water intrusion in these units is expected top be higher.

Now just because Marine gear unit lubes are more tolerable to moisture intrusion doesn't mean you shouldn't test frequently or change their oil frequently (if you don't test).

 

[tdi-rick]

Originally Posted By: MolaKule

Most additive packages I am aware of for mineral or synthetic base oils are oil soluble only.



Thanks MK.
My interest is piqued, I might make some enquiries as to who their additive supplier might be.