Sierra - Full Synthetic Gear Lube - 32 oz. - 6-Pack - 96802 Want to know more about how your engine is breaking-in or wearing? Curious about whether or not your oil is doing its job? Want to be ahead of problems that may develop? PartsVu has partnered with Blackstone Laboratories and we are now offering professional oil analysis kits. Results are typically received in a few days via email. Shop now. Synthetic Gear Lube is specifically formulated to optimize gear life by reducing friction and providing superior wear protection in severe operating conditions. The unique synthetic formulation is shear stable and resists oxidation to ensure high performance over a wide range of ambient operating temperatures. Features: 6-Pack Size - Quart