HKS ADD-II Engine Oil Additive 200ml for Mazda RX-8 (Series 1 & 2, 2003-2012)

HKS ADD-II is a premium organic molybdenum-based engine oil additive developed to reduce internal engine friction and help protect against wear. For the Mazda RX-8, it is a simple way to add extra lubrication support to the engine oil, with HKS specifically highlighting quieter engine operation, improved response, and strong protection during dry starts.

• Contains Mo-DTC organic molybdenum friction reducer to help lower internal engine friction
• Designed to provide faster engine response and quieter mechanical operation after addition
• Helps protect pistons, con-rods, crankshaft and other internal engine parts from wear
• Especially beneficial for dry-start protection where additional oil-film support is valuable
• Supplied in a 200ml bottle with HKS recommending 1 bottle per 3L–5L of engine oil
• Suitable for petrol and diesel vehicles, but not for 2-stroke engines, motorcycles, or systems where engine and transmission share the same oil

You will notice a smoother and more refined engine feel, particularly in noise, response, and general running smoothness, while also adding another layer of protection for a hard-driven RX-8.

For a more complete lubrication and reliability package, consider pairing this with the GREDDY TRUST Oil Filter and the R-MAGIC Racing Energy Oil.