Max-Gear is recommended for use in front or rear LSD differentials, manual transmissions, and lower gear units of marine engines that specify use of an API GL-5 or GL-4 fluid
Max-Gear is recommended for use in front or rear LSD differentials, manual transmissions, and lower gear units of marine engines that specify use of an API GL-5 or GL-4 fluid
Keep your transmission healthy with fresh fluid - Designed for use with ZF 6 & 8 Speed Transmissions
This product was last offered at the strikethrough price on
04-27-2026
High-performance engine oil with an optimal viscosity grade produced using fully synthetic polyalpha-olefins (PAO).
TRW DOT 4 fluid. Boiling point - Dry 270°C (518°F) / Wet 163°C (325°F)
Want to use that signature purple oil in your European engine? Here is Royal Purple's answer to the European engine market.
Featuring a newly developed cap system designed for thorough and efficient emptying of the container.
7-in-1 Fuel Treatment is designed to make driving enjoyable again by removing deposits from the combustion chamber.
This item is classified as Hazardous Materials and requires special shipping and handling. We cannot ship this item out of the US or with priority shippi
Power steering fluid friction modifier
MSRP stands for Manufacturer's Suggested Retail Price. This is the suggested retail price provided by the manufacturer, supplier or seller.
This product was last offered at the strikethrough price on
05-06-2026
40WT race oil with high wear protection
TRW DOT 5.1 fluid. Boiling point - Dry 269°C (516°F) / Wet 187°C (368°F)
This product was last offered at the strikethrough price on
03-02-2026
GL5 Level oil
2X Entries For Our 25th Anniversary Sweepstakes!
A specific blend used to provide instant protection in the most demanding conditions
Made for high performance race specifications and handles a higher dry boiling point than a typical off the shelf brake fluid.
A triboceramic treatment to restore and protect metal surfaces inside the engine
Ensure long life of valvetrain components