thanks again! hard decision..Castrol recomends 0w-40m, Nulon recomends four different ones with 0w-40 as top choice and penrite recomends seven different ones with 40w-50 as there top.
Thanks for your help!A friend suggested NULON FULL SYNTHETIC 15W-50 STREET & TRACK HIGH PERFORMANCE ENGINE OIL. Would this be o.k for normal everyday driving? My car is stock and dont really drive it hard.