Lucas Heavy Duty Oil Stabilizer - 1 Gallon BR4009 1987-1989 GMC R2500 CID 454

1987-1989 GMC R2500 CID 454 GAS

2-3/8 in ID

heat treated to 37-39RC

2005-2007 Freightliner XC Raised Rail

2001-2003 GMC Sierra 1500 HD 78

Lucas Heavy Duty Oil Stabilizer - 1 Gallon BR4009 1987-1989 GMC R2500 CID 454A pure petroleum multi use oil supplement. Controls noise, heat and wear in manual transmissions and differentials. Number one in the heavy duty and high performance industries. Lucas Oil Stabilizer is a 100% petroleum product formulated to eliminate dry starts and reduce friction, heat and wear in any type of engine. It allows motor oils a higher degree of lubricity which reduces oil consumption and operating temperatures. Use Lucas Oil Stabilizer in