Well my buddies and I use Amsoil in our bikes and we rev the ???? out of them. Our engines run great on them. So on my next oil change I'll be using Amsoil and the Nissan filter on my Rogue, and I'll change it at every 5,000 miles just to stay under the warranty. I know its alittle expensive but worth it. Another thing.. you can only purchase Amsoil through their website.

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"WhY sOo SeRiOuS"