Originally posted by Lud:
If these additives offered anything, oil companies would offer them in a more expensive version of their oil.
I just lost what little confidance I had in Fram after reading that.The Double Guard filter is the only oil filter to contain DuPont Teflon® PTFE ? the same Teflon®* PTFE as found in many of the leading oil additives. So not only does the Double Guard product filter out the harmful dirt that can corrode your engine, for those consumers who would like to use a Teflon® additive, the Double Guard filter provides a way to distribute it to your engine.