Hands down Motorcraft. When I had my 2002 Ford F350 7.3 Diesel, it used the Motorcraft #1995, which was sold at WM for $10 dollars. It was a very large oil filter , heavy and well made. With the 7.3 engine (Made for Ford by International) had a high pressure oil pump that pressurized the oil for the injectors so the engine would run. This was a filter that was made to handle the oil pressure that was generated by this engine's high pressure oil pump. The 7.3 held 15 quarts of diesel rated oil,this filter was made to handle the demands while filtering this much oil.