CESSNA
SECTION 8
MODEL 172S NAV III
AIRPLANE HANDLING, SERVICE
KAP 140 AUTOPILOT
AND MAINTENANCE
U.S.
FUEL
(Continued)
FUEL ADDITIVES
(Continued)
Diethylene Glycol Monomethyl Ether (DiEGME) compound must be
carefully mixed with the fuel in concentrations between 0.10%
(minimum) and 0.15% (maximum) of total fuel volume. Refer to Figure
8-1 for a DiEGME-to-fuel mixing chart.
WARNING
ANTI-ICING ADDITIVE IS DANGEROUS TO HEALTH
WHEN BREATHED AND/OR ABSORBED INTO THE
SKIN.
CAUTION
MIXING OF DIEGME WITH FUEL IS EXTREMELY
IMPORTANT. A CONCENTRATION IN EXCESS OF THAT
RECOMMENDED (0.15% BY VOLUME MAXIMUM) MAY
RESULT IN DETRIMENTAL EFFECTS TO THE FUEL
TANK AND SEALANT, AND DAMAGE TO O-RINGS AND
SEALS USED IN THE FUEL SYSTEM AND ENGINE
COMPONENTS. A CONCENTRATION OF LESS THAN
THAT RECOMMENDED (0.10% BY TOTAL VOLUME
MINIMUM) WILL RESULT IN INEFFECTIVE TREATMENT.
USE ONLY BLENDING EQUIPMENT THAT IS
RECOMMENDED BY THE MANUFACTURER TO OBTAIN
PROPER PROPORTIONING.
Prolonged storage of the airplane will result in a water buildup in the
fuel which leeches out the additive. An indication of this is when an
excessive amount of water accumulates in the fuel tank sumps. The
concentration can be checked using a differential refractometer. It is
imperative that the technical manual for the differential refractometer be
followed explicitly when checking the additive concentration.
(Continued Next Page)
172SPHAUS-05
8-19
For
Training
Purposes
Only
Summary of Contents for Cessna 172S NAV III Skyhawk SP
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