Wrong fluid in fuel tank

An interesting question came up in the Ask a Mechanic forums recently. Trudie accidentally poured brake fluid into her fuel tank and wanted to know whether she needed to drain the tank or if it was OK to drive it with the brake fluid in it.

This happens once in a while – someone pours the wrong stuff into the tank, usually because they bought fuel additive (carb/injector cleaner most often) and accidentally grabbed the wrong bottle. In most parts stores, these fluids are often all on the same shelves.

Pinboard (MacAaron)

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