2016 Sherco ST300 Factory and ST125 factory Sure I'm correct but can I fill clutch reservoir with dot 4 same as brakes front and rear.

It would seem highly unlikely that they would use different fluids on one bike.

 

 

Does it not say what type of fluid to use on the reservoir cap?

If gasket is green, probably it uses mineral oil.

If you put a drop of the original oil in water and it get white and mix, its dot.

 

2017 uses mineral oil in the clutch and dot 4 in the brake.

Apologies for the thread revival but I was doing a search for my own benefit and it tells you on the cap lids.