Genuine Beta Marina 15W-40 API CF Oil. Suitable fore all Beta Marine diesel engines. Supplied in 5 litre containers. -15°C to +15°C 0°C to +30°C 25°C and above API classification CF replaces both CD and CE. Beta Marine recommend changing your engine oil: – After the first 50 hours – Every 150 hours (for shallow sump engines only) – Annually or 250 hours if sooner