I didn't use any BRP oils when I did my 10 hour service. I used Mobil 1 synthetic for the differentials and gear box and Amsoil for the engine oil. I would have used Amsoil for my differentials and gear box but I got such a great deal on the Mobil 1 stuff I couldn't pass it up and I am a Amsoil preferred customer.About the only ones that need a 10 hr service is the dealer.
All you need is to have is oil you use meet their requirements, that's it, end of story. If they (the dealer) tell you differently, it could be construed as against the law and at best unethical of them to tell you that. Generally, the public is unaware that it is illegal for a vehicle manufacturer to tie the warranty of its product to the use of the manufacturers own lubricant. They cannot force you to buy something branded by them (BRP) that helps them make money, to keep your warranty intact.
Bombardier Recreational Products (BRP) changes its operator’s guides in regards to warranty coverage.