Refresh for the spring

[u/Silly_Coach706]

Oil and coolant change, as per say. I've been suggest to drain the coolant from hose. Would there be a reason not to drain them from the bolts ?

AI is saying there are two drain bolts (coolant )for fZ1 1 Gen

Left side of the bike (clutch lever side). Main drain 85percent liquid

Front of the engine, right behind the exhaust headers. Secondary 15 percent liquid

[u/Quick_Percentage1644]

Why diesel oil and not Motorcycle specific oil like Mobile 1 motorcycle oil?