FRAM ULTRA all the way.
Actually it should really be
Napa Gold vs Fram Tough Gaurd.... b/c Napa gold is not the top of the line Napa oil filter.
and Fram Ultra is top of the line FRAM Oil filter.
So in all honesty it should be Napa GOLD vs Fram Tough Gaurd... Perhaps then I might select the Napa Gold.... or perhaps a toss up .... whatever is better deal...
Fram Tough Gaurd is a good filter also.
Perhaps do Napa Plat vs Fram Ultra and see the specs