Modern gasoline direct injection (GDI) engines have achieved levels of power and fuel economy never before possible in passenger car engines. As a result, smaller engines operate at much higher loads across all engine speeds. This has caused increased wear in critical areas of the engine, and created a destructive phenomenon called low-speed pre-ignition (LSPI). The unique, state-of-the-art additive technology in Royal Purple High Performance engine oils is designed specifically to address these issues, and help engines maintain performance and reliability.
- Enhanced Engine Performance
- Optimized Fuel Economy
- Long-term Protection
Fits
1986 Isuzu Trooper DLX
1986 Isuzu Trooper LS
1986 Isuzu Trooper LX
1987 Isuzu Trooper DLX
1987 Isuzu Trooper LS
1988 Isuzu Trooper LS
1988 Isuzu Trooper S
1988 Isuzu Trooper XS
1989 Isuzu Trooper LS
1989 Isuzu Trooper RS
1989 Isuzu Trooper S
1989 Isuzu Trooper XS
1990 Isuzu Trooper RS
1990 Isuzu Trooper S
1991 Isuzu Trooper S







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