If the bike is a 2 cycle then use nothing but a name brand 2 cycle oil of your choice. If the bike is a 4 cycle then use SAE 10w30 any major brand full synthetic.
the top speed of a 150cc dirt bike can depend on a lot of things like if its a 2 stroke or a 4 stroke engine what kind of terrain your on and how much you way but the average is about 50-55mph
Get a KTM
50 mph to 80 mph it depends upon bike.
no make
depends on your age and height
u can noramlly find out by looking at the vin # then searching it on a dirt bike site.
they make oil to petrol thats why the is dirt
ask them
What kind of an idiot are you? That seriously depends on what kind of freaking bike you have, STUPID!
Should be regular 2 stroke oil
4 stroke
Wawa unleaded.