XDH PLUS Turbo Engine Oil SAE 15W-40 CF-4: (Specification API CF-4, MIL-L-2104E) Description Waxpol Super 15W-40 engine oil is designed to provide outstanding performance in most severe applications of modern diesels and other gas engines. Provides extended engine life and good pick-up. Benefits: Superior protection for 4 Stroke engines in severe conditions. Prolongs engine life. Reduces engine oil consumption. Improves low temperature sludge control in Stop-and-go service.