Quote:
Originally posted by Wil Ferch
Over the years there has been much said about the internal check / backflow valves, etc....flow path, spring loaded "end-valve", etc, etc...that may be missing on the aftermarket units ...
Go w/ Mahle.....
- Wil
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The old red Purolator 260s had the internal check valve and were everybit as good as the Mahles of the day.
The new white Purolators are crap, there isn't much inside of them.
I bought one just to see what was in there
