steveozz67
New Member
I noticed that there is a part number change in big block oil filters in the being of 1972 , what is the difference in the 2 filters ? can they be interchanged with each other ?
I noticed that there is a part number change in big block oil filters in the being of 1972 , what is the difference in the 2 filters ? can they be interchanged with each other ?
Wix 51515 (NAPA 1515) is my preferred filter.
I still do in a pinch, I can get them on Sundays when no close parts stores are open.Everybody down here used the Ford/Motorcraft FL-1A filter for Chrysler and Ford engines. They were available and at a good price, plus "OEM quality".
That's what I've been using for years, before that Fram cheapos with no issues.Wix is good, too.
That's what I've been running for the last 3 years.Also running Rotella 15W-40 in Mopar engines for the last 3 decades with no troubles whatsoever.
Going off on a tangent (which I've always tended to do since I was in grade school) I remember reading an article in Consumer Reports back in the '80s about the quality of engine oil filters. In their tests, they determined the best quality oil filter was the MoPar OEM filter, followed by Motorcraft and AC Delco. The best quality aftermarket came in 4th place and it was Fram. Funny, but I don't remember where Wix was on that list, but I've always heard they are one of the best filters available. I seem to remember that Purolator was pretty close to if not the lowest on their list. That was back in the eighties though, I image things could have changed a lot.
Has lots of Zinc, great for flat tappet cams.