Maxima 30-23901 Pro Plus+ Full Synthetic 5W-40 4-Stroke Engine Oil 1 Liter

The Maxima Pro Plus+ (30-23901) is a full-synthetic, ester-fortified 4-stroke engine oil in a 5W-40 viscosity grade, offered in a convenient 1-liter (33.8 oz) bottle. Engineered for both racing and everyday use, Pro Plus+ delivers optimum protection, peak performance, and positive clutch feel in all air- and water-cooled 4-stroke gasoline engines.

The surface-active, oxidatively stable formulation provides excellent film thickness while maintaining viscosity across all operating temperatures. Its advanced, proprietary additive system keeps engines running clean and extends the service life of critical components. Pro Plus+ exceeds the requirements of API SN PLUS and JASO MA2, making it fully compatible with wet clutch systems.

Key Features:

• Full-synthetic, ester-fortified formula for superior lubrication and thermal stability
• Superior protection at any temperature — ideal for both cold starts and high-heat operation
• Excellent clutch feel and clutch protection — formulated specifically for integrated wet clutch designs
• Shear stable formula maintains oil viscosity and film thickness under load
• Proprietary additive system combines with synthetic base oils to minimize oxidation and wear
• Surface-active chemistry aggressively attaches to engine surfaces to prevent deposits and keep components clean
• Suitable for all air- and water-cooled 4-stroke gasoline engines
• Approved for both racing and everyday street riding
• Exceeds API SN PLUS / JASO MA2 specifications
• Made in the USA

Available in a 1-liter (33.8 oz) bottle, the Maxima Pro Plus+ 5W-40 is the ideal choice for riders and racers who demand a premium synthetic oil that protects the engine, transmission, and clutch system in a single formula.