Mobilube synthetic 75w90 good for final drive?

[drbremnes]

Hi,

While having my rear wheel off for tire replacement i plan on changing the oil on the final drive. I have a bunch of Mobilube synthetic 75w90 gear oil left from servicing my Chevy Ava. It says API GL-5, but I can´t fint anywhere that says it´s hypoid. Is it still a good choice for the final drive?

This is the oil I have: http://www.nn.commaoil.com/commercial-vehicles/products/view/408

[hubcapsc]

I think "Exceeds API service classifications GL-4 and GL-5" are the magic words, that's
what Pro Honda Shaft Drive Oil fine print says on the bottle.

This no-name looking stuff is what they had down at the otter parts store when I went looking,
it says the right thing on the label, and is in my final drive now...



-Mike

[salty1]

Should work just fine.     I use this stuff from Wally World.

[ShiftHappens]

I use the US stuff and no problems. I changed it when I changed my tire.

I found this Article:

http://www.ulei-mobil.ro/pdf/MobilAutoDataSheet/Mobilube%201%20SHC%20pds.pdf

Look at bottom of paragraph 3. It appears it is hypoid.

[Tfrank59]

Hi,

While having my rear wheel off for tire replacement i plan on changing the oil on the final drive. I have a bunch of Mobilube synthetic 75w90 gear oil left from servicing my Chevy Ava. It says API GL-5, but I can´t fint anywhere that says it´s hypoid. Is it still a good choice for the final drive?

This is the oil I have: http://www.nn.commaoil.com/commercial-vehicles/products/view/408

One thing good is you can easily change your final drive gear oil anytime, if at some point you choose to do that after reinstalling the rear wheel.  As far as the word hypoid goes, that means that those type of differential gears, which Valks have, have more sliding pressure then regular bevel gears, and that is why they need extra lubrication for extreme pressure.  I don't know about everybody else, but as long as the viscosity is correct (75 to 90) and somewhere on the bottle I read the words hypoid gear gear oil, I'm good with it.  If we can find hypoid gear oil, with the right viscosity, and it happens to be synthetic oil, even better.  I recently bought a liter of Motorex hypoid gear oil which is a synthetic blend--pretty spendy stuff, about 20 bucks a bottle, but given that the final drive requires only about 6 ounces, that bottle will last pretty much to the end of my days.

[Kunkies]

Amsoil 75W-140 Full Synthetic

Provides more cushion, quieter, superior cooling for final drive regardless of your carrying/hauling/pulling.

[98valk]

Amsoil 75W-140 Full Synthetic

Provides more cushion, quieter, superior cooling for final drive regardless of your carrying/hauling/pulling.

a 140w lowers mpg and is not needed.   heavy trucks go 500k with amsoil 75w90
if your scared that the Honda engineers didn't know what they were doing when they spec'd dino 80w90 and still warranted the bike for 7 yrs unlimited miles then use the amsoil 75w90 high shock oil.
if your really really scared of the Honda engineers then use the mpg wasting 75w140 oil.
just remember 140w oil was developed for life time fills as required by environmental epa clowns as part of their zero discharge policies.
 140 will eventually shear down to  90W thereby providing lifetime fill, but reduced mpg for yrs of usage.
even BMW was not providing a way to drain, no plug, the gear oil from their final drives to meet this zero discharge policy.

[9Ball]

I've been using Mobil 1 75w90 almost since my 1999 was brand new.  I also use it in my Rocket 3 and my Wife's VTX1300.  I change the final drive every other engine oil change as a matter of routine maintenance.  It's overkill but so easy to do for a known Achille's heel of our bikes.

It's good stuff and will make your final drive noticeably cooler than the dino oil.  Somewhere in the archives there's proof that the final drive runs cooler (as evidenced by heat gun) with the Mobil 1 synthetic.

Don't run the heavier Mobil1...the viscosity specs for the stuff you have are what should be used.  It sounds like you have a lifetime supply at 150 ml per oil change...good luck and enjoy.