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What happens if someone put sugar in your gas tank?

Answer:
Sugar in the gas tank is not as serious as it sounds. However, it will cause trouble with the fuel filter(s) in the car. The more modern cars have more than one fuel filter leading to the fuel injector system. Sugar does not dissolve in fuel, so it will not get past the filters. However, it will eventually clog up the filters and obviously, the more sugar in the tank, the quicker this clog will occur. A clogged fuel filter will cause the car to either run very rough or to stop running altogether as the engine is effectively out of fuel. There are two options for repair: replace fuel filters as they become clogged or have the fuel tank removed form the car and flushed out by a mechanic. The fuel tank removal may be more expensive up front, but once this has been done, the problem is fixed. Leaving the sugar in the tank and cleaning it up by replacing fuel filters is a slower solution and may result in you stranded on the side of the road while you get another filter and install it.
First answer by Enzo cavani. Last edit by Jmandersor. Contributor trust: 0 [recommend contributor recommended]. Question popularity: 3 [recommend question].