Does anyone know the difference between marine gear lube and automotive gear lube? Both of these I'm looking at are the same brand, same rated viscosity, and are both GL-5 rated. The marine version is about a buck more per quart.
Marine gear lube vs auto gear lube
- Thread starter garyb80
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The Marine lube has additives that make it water resistant.
Exactly. More specifically, it's designed to retain its ability to lubricate and protect against corrosion even when contaminated by water. I use the Amsoil lube, which continues to work even under 10% water contamination.
Using an automotive gear lube will not kill anything, but if any water gets past the seals, it'll break down fast.
Using an automotive gear lube will not kill anything, but if any water gets past the seals, it'll break down fast.
Does your outboard manual really cals for GL5 spec?
outboard gearboxes often have bronze bearings...and GL5 will eat them (chemicaly!)
outboard gearboxes often have bronze bearings...and GL5 will eat them (chemicaly!)
Originally Posted By: Kamele0N
Does your outboard manual really cals for GL5 spec?
outboard gearboxes often have bronze bearings...and GL5 will eat them (chemicaly!)
What I was considering this for is the differential on my 4x4 truck.
Thanks for the info guys.
Does your outboard manual really cals for GL5 spec?
outboard gearboxes often have bronze bearings...and GL5 will eat them (chemicaly!)
What I was considering this for is the differential on my 4x4 truck.
Thanks for the info guys.
MolaKule
Staff member
Originally Posted By: garyb80
Does anyone know the difference between marine gear lube and automotive gear lube? Both of these I'm looking at are the same brand, same rated viscosity, and are both GL-5 rated. The marine version is about a buck more per quart.
Marine Gear Lubes have a bit more of the following:
Emulsifiers
Corrosion inhibitors
Rust Inhibitors.
So the cost is higher because the addpack is more expensive.
Unless you are covering your diffy with water by crossing streams or such you don't need it.
Does anyone know the difference between marine gear lube and automotive gear lube? Both of these I'm looking at are the same brand, same rated viscosity, and are both GL-5 rated. The marine version is about a buck more per quart.
Marine Gear Lubes have a bit more of the following:
Emulsifiers
Corrosion inhibitors
Rust Inhibitors.
So the cost is higher because the addpack is more expensive.
Unless you are covering your diffy with water by crossing streams or such you don't need it.
They just get to charge more.
Water in a gear box will wipe it out very quickly, don't care what oil is inside.
Water in a gear box will wipe it out very quickly, don't care what oil is inside.
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i know the quicksilver/mercruiser high performance gear oils (the blue one) have small amounts of moly in it. the original bob (BITOG#1) discovered it in UOA about the time i joined this club:
http://www.bobistheoilguy.com/forums/ubb...6798#Post706798
http://www.bobistheoilguy.com/forums/ubb...6798#Post706798
Originally Posted By: Kamele0N
Does your outboard manual really cals for GL5 spec?
outboard gearboxes often have bronze bearings...and GL5 will eat them (chemicaly!)
My Yamaha F300 calls for GL-5
Does your outboard manual really cals for GL5 spec?
outboard gearboxes often have bronze bearings...and GL5 will eat them (chemicaly!)
My Yamaha F300 calls for GL-5
I said "often"...that is why majority of outboard gearbox oils are GL4 rated...
but nevertheless...you can still pour in oils with GL4+ or GL4/5 or GL5 + MT-1 ratings without harm to bearings (different chemistry...same protection level as GL5...)
but nevertheless...you can still pour in oils with GL4+ or GL4/5 or GL5 + MT-1 ratings without harm to bearings (different chemistry...same protection level as GL5...)
Many GL-5 gear oils are compatible with yellow metals these days, as well as other previously verboten materials.
This is why I am able to discard the ATF in my manual transmissions and run gear lube with impunity.
This is why I am able to discard the ATF in my manual transmissions and run gear lube with impunity.
don't cross the streams
MolaKule
Staff member
Originally Posted By: hattaresguy
They just get to charge more.
Water in a gear box will wipe it out very quickly, don't care what oil is inside.
And you make a good point.
If you're submerging your diffy either by crossing streams or by backing a boat into the lake frequently, you should be changing the diffy lube after such an event.
They just get to charge more.
Water in a gear box will wipe it out very quickly, don't care what oil is inside.
And you make a good point.
If you're submerging your diffy either by crossing streams or by backing a boat into the lake frequently, you should be changing the diffy lube after such an event.
Originally Posted By: Subdued
don't cross the streams
Ha Ha, I was thinking this was a random ghost busters reference and couldn't figure out the relevance.
So, how do you know if a 5 is just a 5, or its a yellow metal safe 5 which just has the protection of a 5? "marine" on the label?
don't cross the streams
Ha Ha, I was thinking this was a random ghost busters reference and couldn't figure out the relevance.
So, how do you know if a 5 is just a 5, or its a yellow metal safe 5 which just has the protection of a 5? "marine" on the label?
MolaKule
Staff member
I assume you're referring to a GL-5 diffy lube.
Today's GL-5 additive packages don't affect copper alloys.
Besides, show me where, in a differential, there are any copper alloy materials.
Today's GL-5 additive packages don't affect copper alloys.
Besides, show me where, in a differential, there are any copper alloy materials.
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Originally Posted By: MolaKule
Besides, show me where, in a differential, there are any copper alloy materials.
OK. The Peugeot 404 used a worm gear differential. The wheel gear was phosphor bronze.
Hey, you just said a differential. That's one.
Ed
Besides, show me where, in a differential, there are any copper alloy materials.
OK. The Peugeot 404 used a worm gear differential. The wheel gear was phosphor bronze.
Hey, you just said a differential. That's one.
Ed
MolaKule
Staff member
Originally Posted By: edhackett
Originally Posted By: MolaKule
Besides, show me where, in a differential, there are any copper alloy materials.
OK. The Peugeot 404 used a worm gear differential. The wheel gear was phosphor bronze.
Hey, you just said a differential. That's one.
Ed
True!
If the diffy had phosphor-bronze worm gearing, I still doubt any modern GL-5 would affect it.
I should have said:
Quote:
Besides, show me where, in a modern hypoid differential, there are any copper alloy materials.
Originally Posted By: MolaKule
Besides, show me where, in a differential, there are any copper alloy materials.
OK. The Peugeot 404 used a worm gear differential. The wheel gear was phosphor bronze.
Hey, you just said a differential. That's one.
Ed
True!
If the diffy had phosphor-bronze worm gearing, I still doubt any modern GL-5 would affect it.
I should have said:
Quote:
Besides, show me where, in a modern hypoid differential, there are any copper alloy materials.
Originally Posted By: SOHCman
Originally Posted By: Subdued
don't cross the streams
Ha Ha, I was thinking this was a random ghost busters reference and couldn't figure out the relevance.
So, how do you know if a 5 is just a 5, or its a yellow metal safe 5 which just has the protection of a 5? "marine" on the label?
yaoooooooooooo!!!
GL5
VS
GL4/5 or GL4+ or GL5 + MT-1 on the bottle
Originally Posted By: Subdued
don't cross the streams
Ha Ha, I was thinking this was a random ghost busters reference and couldn't figure out the relevance.
So, how do you know if a 5 is just a 5, or its a yellow metal safe 5 which just has the protection of a 5? "marine" on the label?
yaoooooooooooo!!!
GL5
VS
GL4/5 or GL4+ or GL5 + MT-1 on the bottle
Originally Posted By: MolaKule
I assume you're referring to a GL-5 diffy lube.
Today's GL-5 additive packages don't affect copper alloys.
Besides, show me where, in a differential, there are any copper alloy materials.
Actually, I was asking in reference to a suitable replacement for a copper alloy worm geared tiller gear box.
I assume you're referring to a GL-5 diffy lube.
Today's GL-5 additive packages don't affect copper alloys.
Besides, show me where, in a differential, there are any copper alloy materials.
Actually, I was asking in reference to a suitable replacement for a copper alloy worm geared tiller gear box.
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