Penrite MC-4st 10w-40 Oil Full synthetic engine oil (PAO and ESTER) Shear-free motorcycle engine oil protection formula Better class of oil with maximum heat resistance Protection against piston deposits and sludge Offers heat resistance and high performance Excellent clutch slip prevention Competition-proven formula for race teams Maximum power and acceleration This full synthetic 10w 40 PAO & Ester motorcycle engine oil provides the finest performance in engine protection and efficiency for your motorcycle, quad, or ATV. This engine oil delivers exceptional oil film strength and heat resistance while guarding your motorcycle against corrosion, oil oxidation, piston deposits, and sludge despite being under the toughest operating circumstances. It is made with PAO & Ester full synthetic base oils and the newest technology additives. Penrite 10w40 Motorcycle Oil Most current four-stroke road and sports bikes, dirt and enduro bikes, ATVs/Quad bikes, and four-stroke scooters that need a full synthetic engine oil can use MC-4ST 10W-40. It's also acceptable for use in gearboxes with wet clutch systems that mix engine and gearbox oils. It is compatible with JASO MA and appropriate for usage where JASO MA1 and JASO MA2 are required, providing optimal clutch slip prevention in these systems. The anti wear package oil is also equally suitable for use and has anti maximum heat resistance. MC-4ST 10W-40 is a SHEAR FREE formulation that prevents viscosity loss and sustains oil pressure throughout harsh engine running conditions, giving your motorcycle engine the best possible engine wear protection. This Penrite Oil can be used when the manufacturer specifies semi synthetic or other types of oils, such as where SAE 10W-30 and SAE 10W-40 grade oils are suggested, as in Aprilia, BMW, Cagiva, Can-Am, Ducati, Honda, Hyosung, Kawasaki, Suzuki, Triumph, Yamaha, and others. Why Choose Penrite? Les Mecoles, at 16 years old, started Penrite Oil Company from his parents' house in St. Kilda, Melbourne, Australia, in 1926. His father's wheelbarrow was used to carry the initial batches of oil, which were produced on his mother's kitchen stove and carried to gas stations, milling industries, and the local shipping port. Oils were made from the highest grade lubricants sourced from Pennsylvania (PEN) base stocks, which were considered as the best in the world at the time. Only the best oils (RITE) would only be offered to local consumers, and as a result, PENRITE acquired a lot of trust and respect. A new blending plant was developed in Richmond as the company grew. Penrite relocated to Abbotsford after a few years. Penrite continued to develop as the population of Melbourne and regional Victoria rose, and the road and railway network across Australia expanded. Batteries and oil filters were among the new automobile products presented.