Sometimes dirt will collect in the gas cap compartment.
Two things you can try (Yep, the first is easy and what I would do)
1) Ever been to the beach? Got a little sand in your mouth? A little touch to your tongue might verify whether it'= is sweet or dirt.
2) Okay the other way, Gather as much of it up and put it in a teaspoon. Hold it over a candle, Sugar will turn blackish and sort of boil until it looks like dry, thin, black fingernail polish. Sand will get hot, that is all.
Of course either of the two items could intentionally be added to your tank.
Ever thought of a locking gas cap?
The Medic
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Thursday, July 14th, 2016 AT 9:09 PM