The new Husqvarna oil (64% acc OESD301B) XP Synthetic is fully synthetic and biodegradable, designed for heavy use with high load and high engine speed. It was developed with a new anti-wear additive that gives extremely good lubrication, low smoke emission, cleaner engine and less piston and crankcase deposits compared to competing oils. Suitable for all Husqvarna products, especially for engines with a volume over 55 cm³.