Chevrolet Biscayne Functional Fluid, Lubricant, Grease (including Additives)

Why Functional Fluids, Lubricants & Greases Matter

Every moving component in your vehicle depends on the right fluid or lubricant to function properly. From the engine spinning thousands of times per minute to the gearbox transferring torque to your wheels, functional fluids, lubricants, and greases are the lifeblood of your drivetrain. Choosing the correct product — and changing it on schedule — is one of the highest-impact things any driver or technician can do to extend vehicle life and protect performance.

This category spans a wide range of essential products: engine oil that cushions internal engine components and carries away heat and contaminants; automatic transmission fluid that enables smooth, precise gear changes; gear oil for differentials and manual transmissions; brake fluid that transfers hydraulic pressure to your calipers; and rust and corrosion inhibitors that protect metal surfaces from the destructive effects of moisture and oxidation. Together, these products form the foundation of a well-maintained vehicle.

What to Consider When Shopping Fluids & Lubricants

Not all fluids are created equal, and using the wrong specification can cause serious damage. Always cross-reference your owner's manual for the required viscosity grade, API rating, OEM approval, or transmission fluid specification before purchasing. For performance vehicles or high-stress applications — towing, track driving, extreme climates — upgrading to a full-synthetic formulation in the appropriate category can offer meaningfully better wear protection and thermal stability compared to conventional products. Additives and fuel system treatments can also play a supporting role in maintaining fuel injectors, reducing friction, and conditioning seals.

Top Brands in Fluids, Lubricants & Greases

Liqui Moly is a German lubricant specialist founded in 1957 whose origins trace back to a patent for the solid lubricant molybdenum disulfide (MoS2). Today, the brand produces over 4,000 products — from motor oils and gear oils to additives and greases — and has been voted the top oil brand in Germany year after year. Their formulations carry approvals from major OEMs including Mercedes-Benz, BMW, Audi/VW, and Porsche.

Red Line Oil got its start in 1979 creating lubricants specifically for the racing industry. Built around a unique PAO/Ester base oil combination and a proprietary additive package, Red Line has earned a reputation among racers and enthusiasts alike for delivering top-tier protection across motor oils, gear oils, ATFs, and fuel additives.

Motorcraft is Ford Motor Company's official OEM parts and fluids brand, offering engine oils, transmission fluids, and other lubricants engineered to meet Ford's precise specifications for Ford and Lincoln vehicles. For owners who want factory-approved fluids with exact OEM fitment, Motorcraft is the benchmark choice.

Motul is a French lubricant manufacturer with a history stretching back to 1853 and deep roots in motorsport, having been the first to introduce a 100% synthetic motor oil for automotive use. Motul's extensive range covers everything from street-car engine oils to specialized fluids for racing, motorcycles, and classic vehicles.

Royal Purple is known for its high-performance synthetic lubricants formulated with a proprietary additive technology designed to provide superior wear protection, improved fuel efficiency, and compatibility with both conventional and synthetic oils, making it a popular choice for enthusiasts looking to upgrade their factory-fill fluids.

Explore by Subcategory

Whether you're performing a routine oil change, refreshing your drivetrain fluids, or protecting your vehicle against rust and wear, the right product is just a click away. Browse our top subcategories to find exactly what your vehicle needs:

• Engine Oil — The cornerstone of engine health, available in conventional, synthetic blend, and full-synthetic formulations across a wide range of viscosity grades.
• Rust and Corrosion Inhibitors — Protect metal surfaces, undercarriages, and exposed components from moisture, road salt, and oxidation.
• Automatic Transmission Fluid — Keep your automatic or dual-clutch transmission shifting smoothly with the correct OEM-spec or high-performance ATF.
• Gear Oil — Purpose-built viscosities for differentials, transfer cases, and manual transmissions to reduce wear and maintain efficiency.
• Brake Fluid — A safety-critical fluid requiring regular inspection and replacement to maintain consistent, reliable stopping power.