Best Motor oil Amsoil

[Stefon]

I wanted to put the best oil in my 2015 GTR-215. With a little research found a Service bulletin by Amsoil. Marine 10W-40. They said that the supercharger clutches slip less in this oil. Here is a link to read the pdf.
https://drive.google.com/file/d/0B2Z6aZ8iUfpGczNUZndBXzJPdVk/view?usp=drivesdk

 

[Greg]

The slippage is inevitable but Amsoil makes a great product. You can check the slippage yourself with a few simple tools as well. Only thing specialized that you need is the gear holding tool.

 

[Njparty]

That service bulletin is so old though. How do you know they didn't change the formula? I asked amsoil technical if their oil now contains friction modifiers and they wouldn't give me a straight answer. Being that its a marine oil for all different engines i don't see a reason why they wouldn't use friction modifiers. I may go with their motorcycle oil that meets the JASO MA2 cert but haven't decided yet. Still waiting to see if i can get a straight answer.

 

[ski-d00]

SeaDoo doesn't use ceramic washers anymore and haven't since 2007. I wouldn't use that bulletin as any basis of what to use.
SeaDoo now uses semi-synthetic and it has proven to be a great oil straight from the factory. Remember, when you change your oil, you only get 3 qts out and it is a 5 qt system so 2 qts are left behind every time you change your oil so you'll be mixing oils when you change.

 

[Njparty]

SeaDoo doesn't use ceramic washers anymore and haven't since 2007. I wouldn't use that bulletin as any basis of what to use.
SeaDoo now uses semi-synthetic and it has proven to be a great oil straight from the factory. Remember, when you change your oil, you only get 3 qts out and it is a 5 qt system so 2 qts are left behind every time you change your oil so you'll be mixing oils when you change.

So you use the xps oil for all your skis? I heard its just Castrol actevo re-branded. Any truth to that? I just picked up a GTR 230 and am wondering what to change it to at 10hrs. Will admit I drank the Amsoil cool aid a while ago. use it in everything once a year oil changes for the truck the last 3 years cant beat it.

http://www.castrol.com/en_us/united-states/motorcycle-oil/4-stroke-engine-oil/act-evo-x-tra-4t.html

 

[ski-d00]

Yes, I use BRP oil. It is made by Castrol but not sure if it is a special formulation specifically for them or just rebranded. At any rate, it is a proven oil for SeaDoos. It is more expensive but I don't understand people who spend $10k plus on a watercraft and then cheapout to save $20 or less when they change the oil when it can affect the function of their high dollar machine.

Not saying Amsoil is bad product. I know they make good oil but I'm not personally convinced it has been proven in SeaDoos but I'm sure others will disagree. I am only going by personal experience with BRP oil over the last 25 years and the countless machines I've used them in. I don't want to start the great oil debate over again because it goes nowhere.