I contacted FRAM re: FRAM PH8A (FL1A equiv) and FRAM PH977A (FL299 (larger) equiv.) They indicate that the larger one is not as efficient as the smaller filter. The larger had a 30 micron rating @ 97% eff.compared to a 20 micron rating @ 97% eff. for the smaller one. They indicated the larger...
According to the WIX website their FL1A equivalent is WIX #51515 and their larger FL299 equivalent is WIX #51773.
They indicated they were the same except the micron ratings.
WIX #51515 (FL1A equiv.)had a nominal micron rating of 20. They did provide the Beta ratio of 2/20=13/23. Which I...
Makes sense and Thanks for bringing it up. I assumed that when a filter micron rating was given or advertised, it was at a standard efficiency rating. I contacted Hastings and they indicated the following:
#LF115 (FL1a cross ref) Nominal micron rating 12 @ 50% eff. 30 micron @98% eff.
#LF426...
I thought I would share my findings.
As suggested by Greasymechtech, I contacted Hastings regarding their filters that cross reference to the Motorcraft FL1a. They had a number of them. One is Hastings #LF115 which is the same physical size as the FL1a. The Hastings LF115 has a Micron rating of...
Thank You for the info. Although I am sure the FL1A filters are adequate, I was looking to see if there was an improvement in oil capacity and lower average oil temps as you mentioned simply by putting on a different filter. I will look into the #51459.
Considering Ford uses these filters on...
I am considering using the Motorcraft FL299 (longer) oil filter on my 460 engine instead of the FL1A filter. Does anyone know what the specs of both of these filters are? I would like to make sure the longer FL299 filter specs are as good or better than the FL1A filter specs. I understand these...