Hisun HS294-2 Owner's/Operator's Manual page 63

safety support.
To check the oil level, draw out the
dipstick, wipe it clean, replace it, and draw
it out again, check to see if the level is too
low, add new oil to the prescribed level on
the dipstick.
Hitch coupling device
12-63
coolant in EVERY 2 YEARS in PERIODIC
SERVICE section)