Could you compare the Amsoil and Mobil 1 filters? Always have run the Wix Racing filters. Thanks.

Wasn't the Fram HP6 like a 10 or 12 micron filter?

I have been running puralator for years now, no issues, tried a mobile 1 this spring...and the damn thing leaked where it was put together ??no high op either....Rob

so who knows what Amsoil filter # fits a 496HO?

Amsoil EaO is a bit ahead of M-1 which is a bit ahead of Pure-1

Wix is 7-19 microns nominal (50% efficient) depending on the filter.. per their website....

Pure-1 is a generally well regarded filter too by the way.

1-715-399-TECH (8324) between 8 a.m. and 5 p.m. Central Time.

Best thing to do is call!

Hydro, just curious, have you heard anything about the system 1 re-usable filters? I'm considering using one as a pre filter in front of an amsoil filter. Would you consider using one as the only filter for your engine?

Looks like they are high flow ..high performance filters available in..30/45/75 micron ratings.

As a Racing or prefilter I can see the logic...or on an engine that is so very hopped up that it needs this or something like a Wix Racing. Some engines just do....

What engines do you have?

A rather mild hydraulic roller 540, about 625 h.p. I was told by the builder that the system 1 was nice because it can easily be inspected for any debris from a bearing failure. You never have to by a filter again, since it is easily cleaned and reused.

system 1 is the ultimate as far as water separating fuel filters go.