I've used Amsoil in my RZR for 3000 miles and 160 hours (all year round AZ weather) with no problems. I change it every 50 hours and it looks good coming out.
As for higher weight for hotter climates, I don't do that unless it states it in the manual for any vehicle I own. I don't do it mainly because of small orifices that may not be designed to flow thicker oil, therefore starving some engine areas of oil.
As for higher weight for hotter climates, I don't do that unless it states it in the manual for any vehicle I own. I don't do it mainly because of small orifices that may not be designed to flow thicker oil, therefore starving some engine areas of oil.
