Multi-grade gear oil; could this be the demise of Gulls...

[CatiGull]

I think getting hung up over small differences in additives when the oil is going to mix with sea water anyway doesnt make a lot of sense, honestly.

Ive been using the NAPA product for a couple of years and dont see any darkening of metals or corrosion etc in my gearboxes of my Fortys or Forty Pluses.

[TCWest]

Sounds good to me. Thanks.

[atoyot]

There are two choices there, Rik.
The first is Mobil SHC 634, stock # 4ZF30.
Synthetic Gear Oil
SAE Grade 140

The second is Mobilgear 634, stock # 6Y785.
Industrial Gear Oil
SAE Grade 140

Here's a question about the first option above - elsewhere on the WWW, a chief attribute of this synthetic Mobil 634 is said to be it's ability to remain separated from water, to wit:

"Provides excellent performance in terms of rust and corrosion prevention, water separability, foam control, air release performance ensuring problem-free operation and reduced operating costs in a wide range of industrial and marine applications."


Being as we hope/plan for/expect this heavy oil to mix in our gear cases with seawater into a lubricating agent, is this a good choice? I don't mean to contest the use of this at all; I'm simply trying to be careful about the options before going off to purchase one or the other since I'm a believer in synthetic lubes elsewhere in the engine maintenance world. As it is, we have a Grainger supply store down the road from my employment.


Tnx,

Ted

[bigoink]

Here in the Philippines ,140 grade oil is available on every garage forcourt for a measly $2 per litre . Ive stockpiled about 50 gallons of it ........just in case ?

[bigoink]

Nobody has answered the second part of your subject header - will this be the demise of gulls?

No. They'll go on for ever. In a hundred years the other Charles will still be mixing up special potions, and anyway third world nations like ours need goopy oil to keep all the antique tractors running.

Charles ,your dead right .............here in the philippines 140 is available on every garage forcourt for a measly £1.20 a litre ........If youd care to send a 40' container and the money, ill fill it for you !