i have been using the motorcraft filter FL1A for about 10 years on all 3 of my vehicles, 1977 catalina Police Enforcer ,1987 mustang 5.0, and the 1999 ram 5.9 gas engine,, works good in all ,never any leaks or problems,purolater is supposed to be the maker , so its a good filter, WM has them cheap..
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