I started using it in my 2005 ES. I noticed a definite difference in shifting. It's much smoother after the switch. You can go to the amsoil website and get a "membership" and but it direct.
Yep....That's what I'm using.I was told by a guy that works at a Polaris dealer that Polaris uses 0W-40 synthetic oil right from the factory.Is this the right stuff?![]()
The diferent weights are more for temperature sensitivity. If it gets really cold where you live, a lower number is great and if it gets really hot, a higher number is good. The higher the number, the heavier the viscosity of the oil and the lower the number, the lighter the viscosity of the oil. Multiple vis oils work withing the range of numbers. Around Texas, the 20w 50 is good. 0w 40 would still cover in most areas and expecially in cold area, the 0 would still make the oil light enough to flow in colder weather. REmember, oil gets thicker or more viscious in cold weather and thinner in hot weather.what dose the different weight of oil do. i noticed the Royal Purple Max cycle is 20w 50 and the amsoil is 0w 40