318 Oil Question

i did some more research on oil and im tending to lean away from the diesel oils,as they are losing their advantages after 2007, as we've discussed. i checked numerous pieces of analysis on different oils. the valvoline vr-1 racing oil(20w50) had excellent viscosity index and a zinc level of .20 percent. that was substantially more than the others(the title of the article is:More Than You Ever Want To Know About Oil). i switched over yesterday. i have drove 100 miles since 12pm yesterday and everything is well. oil pressure numbers have actually improved, mainly because it is 20w50 weight instead of 15w40 weight. the price per quart wasnt bad either:only $3.50 at napa.