What basic, value-priced oil filter has a lower efficiency rating than the Premium Plus/Parts Plus?
What filter do you consider as the least efficient?...... I'll try it!
I'm switching from Fram Ultra and I want highest flow possible.
Why do I want highest flow possible? Just interested in trying the totally opposite of the Fram Ultra next.
I am interested to see if my mileage improves.
If my standing idle improves
if my standing idle oil pressure gauge-readings improves.
If my engine oil gets black sooner
If cold startup noise improves or gets worse
etc....etc....etc.