Functional Fluid, Lubricant, Grease (including Additives)

gpd chemicals are designed to meet OE specifications and standards. Using the correct chemical for your application will ensure proper function. gpd recommends properly flushing all chemicals from the A/C system before recharging.

Marvel Mystery Oil

Permatex Red High Temperature Threadlocker is OEM specified. High temperature/high strength threadlocker for heavy-duty applications. Prevents fasteners 5/8" to 1" (16mm to 25mm) from loosening due to shock, severe vibration and heat stress. Advanced formulation for high performance and heavy-duty applications that operate at higher temperatures. Protects threads from corrosion. Suited for temperatures up to 450°F (232°C). Removable with heat and hand tools.

Anti-wear hydraulic oil formulated for use in a wide variety of hydraulic systems. Are zinc-based, non-detergent oils with excellent oxidation and demulsibility characteristics and contain rust and foam inhibitors.

Anti-wear hydraulic oil formulated for use in a wide variety of hydraulic systems. Are zinc-based, non-detergent oils with excellent oxidation and demulsibility characteristics and contain rust and foam inhibitors.

Total injector cleaner and performance improver. Endorsed by Cummins. Cleans dirty injectors and prevents injector sticking. Removes both internal and external deposits on fuel injectors. Boosts power. Restores lost power and fuel economy. Contains Slickdiesel Lubricator to protect fuel pumps and injectors from increased wear. Effective in all diesel fuels. Treats up to 100 gallons.

Lucas Pure Synthetic Oil Stabilizer is perfect for use in new equipment that requires synthetic oil or any equipment that needs enhanced performance. It can be used to protect new and used heavy duty and high performance transmissions, gear boxes and engines. This product controls heat and wear in motorcycles, air-cooled engines and all drive-train components. Lucas Pure Synthetic Oil Stabilizer reduces friction for more power and more MPG. It eliminates dry starts in new engines and provides the extra protection needed for import and domestic engines requiring newer, lighter engine oils. Lucas Pure Synthetic Oil Stabilizer was originally designed for the racing industry. Light, slick and long-lasting with a film strength that stands up to high temperatures and pressures in extreme situations and since it?s pure synthetic, it won?t void warranties! Lucas Pure Synthetic Oil Stabilizer controls noise, heat and wear in manual transmissions, differentials and transfer cases. It stabilizes oil pressure for better performance in today?s electronically controlled gasoline and diesel engines. It eliminates hesitation, rough idle, stalling and loss of fuel mileage caused by low or fluctuating oil pressure. No special limited slip additive needed when used in differentials. In badly whining differentials use our original Heavy Duty Oil Stabilizer. Use Lucas Pure Synthetic Oil Stabilizer in cold weather applications for easier cranking and maximum protection from all wear problems associated with cold dry starts.

Permatex Red High Strength Threadlocker is OEM specified. High strength threadlocker for heavy-duty applications 3/8" to 1" (10mm to 25mm). Especially well-suited for permanently locking studs and press fits. Locks and seals while preventing parts from loosening due to vibration. Protects threads from corrosion. May require heat or special tools for removal. Conforms to ASTM D5363 AN0221, Mil-Spec 46163A, Type I, Grade K.

Permatex Red High Temperature Threadlocker is OEM specified. High temperature/high strength threadlocker for heavy-duty applications. Prevents fasteners 5/8" to 1" (16mm to 25mm) from loosening due to shock, severe vibration and heat stress. Advanced formulation for high performance and heavy-duty applications that operate at higher temperatures. Protects threads from corrosion. Suited for temperatures up to 450°F (232°C). Removable with heat and hand tools.