[Dan_1000XT]

Switching to Amsoil 0-40 for my engine oïl tonight. Now wondering what to use for my trans and diffs. Manual says 75W-140 for trans and rear diff and 75W-90 for the front. What do you guys suggest running for this? I have eassy access to Royal Purple 75W-90/75W-140 Synthetic Gear Oil. Never really used RP so wondering what are the best options here.

Thanks

 

[Doober]

I use RP in my gear and Diffs....working really well so far

 

[LouisianaJake]

I'm running walmart cheap brand synthetic oil in trans and diffs. No issues. Oil is oil in my opinion. It meets the grade that brp requires so why pay twice as much for it?

 

[tomcon95]

^ i work for a transmission shop and im going to say your theory is wrong, to a point. I've seen a quite few cases where the wrong or cheap brand oil was used and caused damage. Their is a reason your paying more for quality oil and that reason is research and special additives in the oils. I know of many oils that arent compatible with others and may cause clutch problems. (Clutchs like in rears and transmissions, not belt clutch) Some things like a pressure washer i dont mind running walmart oils but in a machine that cost thousands use the best oil you can reasonably afford. Its cheap insurance. Amsoil is great so if your going to run it in your motor, might as well run it in the trans and rears imo. Next up would be mobil1. You dont have to change it that often so why not go with the best for an extra $20 or so

 

[JetSnake]

I use Amsoil as well. There are lots of different oils out there that will work great. The place that has the 0/40 engine oil will also have the amsoil gear oil for the front and rear diffs. That's what I'm using, amsoil all around.

 

[LouisianaJake]

^ i work for a transmission shop and im going to say your theory is wrong, to a point. I've seen a few cases where the wrong or cheap brand oil was used and caused damage. Their is a reason your paying more for quality oil and that reason is research and special additives in the oils. I know of many oils that arent compatible with others and may cause clutch problems. (Clutchs like in rears and transmissions, not belt clutch) Some things like a pressure washer i dont mind running walmart oils but in a machine that cost thousands use the best oil you can reasonably afford. Its cheap insurance. Amsoil is great so if your going to run it in your motor, might as well run it in the trans and rears imo. Next up would be mobil1. You dont have to change it that often so why not go with the best for an extra $20 or so

You're right. What I should have mentioned is due to the fact that I ride a lot of mud and water I change it much more often than most people do. Every 2-3 rides at the very longest and may even put only one ride on oil if I know I rode a whole lot of water. The engine oil is easy to just check so I don't change that as often but I drain the diffs and trans very often.

 

[tomcon95]

You're right. What I should have mentioned is due to the fact that I ride a lot of mud and water I change it much more often than most people do. Every 2-3 rides at the very longest and may even put only one ride on oil if I know I rode a whole lot of water. The engine oil is easy to just check so I don't change that as often but I drain the diffs and trans very often.

Thats actually completely understandable if you change it every few rides like you do. I would actually have no problem running the walmart stuff then. Most people dont understand that the cheaper stuff isnt the same and something like mobil1 or amsoil. It wont hold up time wise to the constant abuse the dirt puts on the machines. Right now i have a yfz450 quad and a wr250r dual sport bike. Quad gets the amsoil because i beat on it and the bike gets yamalube. I plan on switching to amsoil once i hit 5000 miles on the bike. Only reason im using the cheaper yamalube is because im changing oil every 1000 miles or less due to it being a new motor and breaking in still.

 

[KOOLKIDZ]

I have actually have seen clutch failures in bikes/quads specifically related to the crappy Walmart oils. Becareful with this in your machine. Quality oil is like steak and potatoes from grandmas compared to Taco Bell, may look good going down but one will be back to haunt you later...


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[Dan_1000XT]

Decided to go with the Royal Purple for the trans and diffs. Where I bought the Amsoil oïl for the motor, the guy did not have anything from Amsoil for the diff. So just went to Canadian Tire and bought the RP. Were i'm from it is hard to find Amsoil stuff, and when you do you don't have much selection...

 

[KOOLKIDZ]

Amsoil just came out with specific ATV/UTV motor oil, front diff and rear diff oil.


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