I've been doing a little research I was looking into that triax synergy oil, and I've been hearing on here that it doesn't have that API donut on it. And you really don't hear much about it, except on Amazon, and in forums. So I was wondering about the Amsoil OE 5W20 is it worth the extra money? Over the other synthetics? I know the main thing is routine maintenance.. I change my oil every 6 months to 8 months I drive tops 4000 miles a year.
Thank you
Thank you