What is hypoid gear oil?
12-27-2010, 05:58 AM
#21
Registered User
Originally Posted by SpitfireS,Dec 27 2010, 04:40 AM
I'm using Amsoil SG SAE 190 in my 4.57 diff.
In an OEM diff I would use 75W-110 or 75W-140 or LE-1605 (SAE 110).
In an OEM diff I would use 75W-110 or 75W-140 or LE-1605 (SAE 110).
12-27-2010, 06:02 AM
#22
Registered User
Is anyone using this gear oil yet?
http://www.le-inc.com/products.jsp?productID=253
I like the specs for 1605 better, but I think the viscosity range of this one might be a little more effective for gear whine.
http://www.le-inc.com/products.jsp?productID=253
I like the specs for 1605 better, but I think the viscosity range of this one might be a little more effective for gear whine.
12-27-2010, 08:43 AM
#24
Registered User
At $24.50/qt plus shipping, it's not cheap here either. But it's available:
http://www.mag-hytec.com/oil-9920%20SYNOLEC.htm
Maybe I'll give it a try this summer when the temps are scorching here in Texas.
http://www.mag-hytec.com/oil-9920%20SYNOLEC.htm
Maybe I'll give it a try this summer when the temps are scorching here in Texas.
12-29-2010, 12:25 PM
#25
Originally Posted by SpitfireS,Dec 23 2010, 02:38 AM
Bror Jace Posted on Dec 23 2010, 01:02 AM
As far as I know there is NO Honda Automotive SAE 90 GL-5 hypoid gear oil.
Honda Marine has the right stuff, for the hypoid gears used in outboard motors.
Its one of the few single grade 90 weights.
Most will think SAE 75W-90 is the same as SAE 90 and they will use that.
Combine this with the SAE J306 specification change (added SAE 110, etc) and you may have found your answer to the "factory oil = whatever the dealer puts in" being shot ater 10k-15k miles.
The original Honda recommendation of GL-5 or GL-6 IMO points out Honda was aware of the high load on the diff oil, as the GL-6 spec was intended for high offset (read s2000man's post) hypoid gears.
As far as I know there is NO Honda Automotive SAE 90 GL-5 hypoid gear oil.
Honda Marine has the right stuff, for the hypoid gears used in outboard motors.
Its one of the few single grade 90 weights.
Most will think SAE 75W-90 is the same as SAE 90 and they will use that.
Combine this with the SAE J306 specification change (added SAE 110, etc) and you may have found your answer to the "factory oil = whatever the dealer puts in" being shot ater 10k-15k miles.
The original Honda recommendation of GL-5 or GL-6 IMO points out Honda was aware of the high load on the diff oil, as the GL-6 spec was intended for high offset (read s2000man's post) hypoid gears.
12-30-2010, 03:47 AM
#26
Registered User
I think the marine type gear oils might not be your best choice for your car. They are formulated for a different environment than a car. The only Honda marine fluid I can find is GL4. You want GL5 for hypoid type gears.
12-30-2010, 03:51 AM
#27
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The Honda Marine I'm talking about is SAE 90 GL-5.
I had a bottle when I installed my 4.57's but didn't take a picture.. sorry
If you can find that spec: use it.
As far as I know that oil has been around for a while so it's "old school" SAE 90.
I had a bottle when I installed my 4.57's but didn't take a picture.. sorry
If you can find that spec: use it.
As far as I know that oil has been around for a while so it's "old school" SAE 90.
01-01-2011, 07:27 AM
#28
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Try to think of every drop of oil as a pie chart. The entire drop (or chart) is divided up into subcomponents: base oil, anti-corrosion additives, additives to deal with moisture contamination, anti-wear additives, extreme pressure agents, detergents and dispersants. All the slices have a percentage value and added together, equal 100%.
For a marine application, extra anti-corrosion and anti-moisture contamination adds are increased ... but they can only be increased by reducing amounts of other, beneficial additives in each drop of oil.
So, would a marine oil be bad for a sports car diff? Probably not, but there are better choices available.
For a marine application, extra anti-corrosion and anti-moisture contamination adds are increased ... but they can only be increased by reducing amounts of other, beneficial additives in each drop of oil.
So, would a marine oil be bad for a sports car diff? Probably not, but there are better choices available.
01-01-2011, 12:57 PM
#29
Registered User
Don't forget that emulsifiers and/or demulsifiers are taking up some space that are targeted at high water content environemnts. I'm not saying that marine gear oil won't work, it's just formulated and targeted for a different environment and possibly not optimized for our application.