Hi! can you help me to find the equivalent oil and lubricants to be used for a Dnepr 650cc with engine MT10-36 and gearbox MT804? I attached pictures taken from MT16 manual. Premise I will use the bike in a temperature range from 10 °C winter till 40 °C summer, I made list below reading on-line. What is your opinion? - Front fork oil: SAE 10 - Motor oil: SAE50 or 20W50 from Harley Davidson - Gearbox oil: EP 80W90 GL4 - Rear drive and reductor at sidecar wheel: Castrol Syntrax Limited Slip 75W-140 Fully Synthetic Car Gearbox Oil Thanks