This is a test of the film strength of a few selected synthetic and blended oils. Film strength is only one aspect of the many important features of motor oil, but it is a fun read and a pretty good advertisement for Royal Purple.
netpg1.1 and netpg1.2 is attached, they're the first pages
I think i might buy me some Royal Purple for my next oil change...I used it once in my Twin Turbo 300zx and it did run super smooth to the point where my friends would say "hey is this thing on?" cause during idle it was sooooooo smooth even with 80,000 miles on the original engine. I dont know why i stoped using it, probably the 5 dollar a quart price.
Linear Mode
