another new guy hoppin’ in the pool here!

Been lurkin’ around here a few weeks and seems to be some good info & knowledgeable guys here. Glad I found you all.
Gonna get right to it here.
:question:
The wife gave me the "green light" on GETTING MY OWN DAM 4-WHEELER that I could actually do something productive on like plowin’ the drive & using around the compound rather than just screamin’ around like I have been since ’87 on mine & useing hers as a tool. Said I was "abusing" her T-blazer now-a-days.:nixweiss:
Anyhow. I picked up this ’06 Scrambler 500 for what I thought was a hell-of-a- deal & getting into changeing out all the fluids like any responsable….. I find that this 500 drinks "0w40". :werd:
Call me crazy, but, NEVER heard of such a thing. Looking into this further, I find that it is quite expensive at that. Is there any alternative to AMSOIL ( not a fan whatsoever) or the Polaris branded lubes?
Any advice would be great. Many questions to come. GUARANTEED
Thanks.:hail: