moparflyer

Hello,

I'm doing my first 500 mile service, and I'm changing front and rear diff fluid on my TRX500.

Question - Amsoil 10w-30 Motorcycle oil is rated for SAE80 Gear Oil - which is what the owners manual calls for in terms of front and rear diff (SAE80 Gear Oil).

Has anyone run this? I just feel weird putting in 10w-30 that's SAE80 rated.

Anyone else out there running this in the diffs?

Also - as a side note - when I drained the rear diff there was wayyyy too much fluid in it. No water in the oil that came out, but just too much of it (I bought it used and a shop had done the 100 mile service). Oil poured out of the check-hole for probably 15-20 seconds...just wondering if this would have damaged anything?

Thanks!

Ryan

midnight4731

I have never heard of anyone running that oil in the diff's before. I personally would stick with regular gear oil, also dont forget its gotta be hypoid gear oil. There shouldnt be too big of a deal with too much in the rear other than cold climate and hard riding can mess up seals. just fill it to the inspection bolt hole on the side, should be 2.5oz i believe. and front should be 6.3oz.

__________________
09 Honda Foreman 500FM
27' swamp lite's
3000 Warn Winch
line x Racks
Perfex suspension kit
High lifter fr springs
d-plate skid & stick stoppers
Custom radio enclosure

moparflyer

Anyone know the GL requirement for the diffs? The oil I got is rated for GL-1 / SAE 80...I'm thinking I might not do it again, but should be fine for the current service?

Newfiebullet

I run Amsoil 75-140 severe gear oil in the front and rear and 5w40 euro oil in the motor since i have owned it and i bought it new. Not saying its the best but shes been to **** and back a few times and she still runs

Oh and it hits -60 up here!!!

Newfie.

__________________
1999 450 17500kms and counting.
Shes starting to show her age and her bones are getting brittle, her heart is weak and skips a beat but still keeps pumping, shes a honda theres no doubt, shes still willing to FIGHT with anyone else.

Travis Ricks

I use the Amsoil Marine Gear Lube SAE 75W/80W-90 (Amsoil product code AGM) in my ATV differentials WITHOUT wet brakes. My Suzuki King Quad HAS a wet brake system in the rear diff, and I use the Amsoil Tractor Hydraulic-Transmission Oil SAE 5W-30. (Amsoil product code ATH).

Read up on these products. I think you'll be well satisfied...

red08420

It should require a GL-5 or at least my Rancher does, just use Honda Shaftdrive. $5.95/pint, comes in a pointy bottle good for other tasks too.

I have used to Golden Spectro 80w90 GL-5 too.

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2008 TRX 420 FM
-winch
-auxiliary front and rear lights
-dog water and bowl
-chainsaw

2003 TRX 400 EX
-Full aluminum skidplates, nerfs, bumpers
-Pro Taper bars & clamps, G2 handguards
-Supersprox sprockets, gold RK
-Razrs

ZZ71

But its only GL1 and that's for transmission, GL5 for the differential. TRUST ME, I know what I am talking about (dealerformanyears), DO NOT USE it in any differential, only for use in engine/transmission applications like your Hondamatic. I use the 10W-30 MCT in my Rincon.

Use the severe gear 75W-90. That's been in my 06 Rincon since new.

You can really use just about any AMSOIL gear lube in the differential but the rear I think has a limited slip type and the SVG 75W-90 would be the best IMO. 1 qts is more than enough to do both.

__________________
Mike
2006 Honda Rincon 680
2010 GMC Sierra Z71 All Terrain

lockburner2000

I just bought honda Hypoid oil today and it says it is rated GL-4 and GL-5. It is 2.95 for a 8oz bottle.

__________________
09 Rubicon Black 3700 Miles
Legend Air Shocks Rear
Kimpex rear box
Fender Protectors With foot pegs For Wife

84 200es Big Red-- Best running rig i own

2010 Yamaha Vector GT 3600 Miles
2012 Yamaha Vector LTX 156 miles Wifes

moparflyer

Thanks all - I ended up getting some 75w90 severe gear from the diffs - glad I did, just put 60 really hard miles on it this weekend!