Originally Posted by Chris de la Cruz
regular, you don't need synthetic in these motors. Its not even worth it.
I tryed 5w50 synthetic in my old stock motor back in '06. That bastard sucked oil like crazy and sometimes was even pretty smokey (but that coulda been the engine as it started to smoke regardless towards the 'end' lol)
I use a oil additive called Molyslip. In my mind, it makes up for the 'synthetic' bit of those expensive oils, and its added insurance (to me) if anything may go wrong (ie. blows up) Good Stuff!