Fuel system · Question 8 of 12
What colour is AVGAS 100LL?
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Answer
- B Blue
Explanation
AVGAS 100LL is dyed blue so that it can be identified. During the pre-flight inspection you check the fuel sample for colour, smell, water and dirt. Jet A-1 is colourless to straw-coloured and must not be put into a spark-ignition engine.