COMPATIBLE with Ford F-250 7.3L DIESEL 1988-1994, F-350 7.3L DIESEL 1988-1994, F-250 6.9L DIESEL 1983-1987, F Super Duty 7.3L DIESEL 1989-1994, F-350 6.9L DIESEL 1983-1987, E-350 Econoline 7.3L DIESEL 1988-1994, E-350 Econoline 6.9L DIESEL 1983-1987 [cont.] E-350 Econoline Club Wagon 7.3L DIESEL 1988-1994, E-250 Econoline Club Wagon 6.9L DIESEL 1983-1987, E-250 Econoline Club Wagon 7.3L DIESEL 1988-1991, E-350 Econoline Club Wagon 6.9L DIESEL 1983-1987, F-150 6.9L DIESEL 1984 REPLACES ACDELCO PF1054, FORD E3TZ-6731A, FRAM PH3766, GM 25011759, MOTORCRAFT FL784, PUROLATOR L30288, WIX 51742 BUILT for both SYNTHETIC AND CONVENTIONAL OILS. Proven to drive up to 5,000 miles between oil changes with confidence. GREATER ENGINE PROTECTION by optimally screening out 97% of harmful contaminants such as such as carbon, sand, dust and bits of metal before they can get into your engine.