14
English / USA
HS 81 R, HS 81 T
Fuel mix ages
Only mix sufficient fuel for a few days 
work, not to exceed 3 months of storage. 
Store in approved fuel-canisters only. 
When mixing, pour oil into the canister 
first, and then add gasoline. Close the 
canister and shake it vigorously by hand 
to ensure proper mixing of the oil with 
the fuel.       
Dispose of empty mixing-oil canisters 
only at authorized disposal locations.
Before fueling, clean the filler cap and 
the area around it to ensure that no dirt 
falls into the tank.
Position the machine so that the filler 
cap is facing up.
Always thoroughly shake the mixture in 
the canister before fueling your 
machine.
In order to reduce the risk of burns 
or other personal injury from 
escaping gas vapor and fumes, 
remove the fuel filler cap carefully 
so as to allow any pressure build-up 
in the tank to release slowly.
Opening the cap
: Swing the grip 90° to the upright 
position.
: Turn the cap counterclockwise
(about a quarter turn).
: Remove the filler cap.
Gaso-
line
Oil (STIHL 50:1 or 
equivalent high-quality oils)
US gal. US fl.oz
12.6
2 1/2 6.4
5 12.8
Fueling