Normal Operating
Procedures
DA 62 AFM
Use of Fuel Additives
CAUTION
Only approved fuel additives not exceeding the approved
concentrations may be used; refer to Section 2.14 FUEL. The
instructions of the fuel additive supplier must be followed.
Failure to exactly follow the fuel additive mixing procedures
during refueling can result in incorrect fuel additive
concentrations, fuel system contamination, and possible
engine stoppage.
Fuel additives may have been already mixed into the fuel when stored. In this case, make
sure that the brand is approved and the concentration does not exceed the approved
values.
Anti-microbial life fuel additives may be manually batch-blended into the fuel tanks. In
this case, introduce the additive while filling the tank after approximately the half tank
is filled.
Anti-icing fuel additives should not be batch-blended into the fuel tank. The fuel additive
should be injected into a stream of fuel.
Record the brand and amount of fuel additives in the airplane log every time fuel additives
are added.
Page 4A - 66 Rev. 0 11-Jan-2019 Doc. No. 11.01.05-E
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