The stainless steel (SS) version of the EZ Oil Drain Valve is designed for diesel exhaust fluid (DEF) tank applications, and features hose ends on both sides. Hose attaches to either end to drain ...

Usually, the DEF fill hole is smaller in diameter. If you are ever in doubt if the correct fill hole was used, drain and flush the tank with deionized water or clean DEF fluid. To avoid running up ...

As for the repair work required, if the problem is caught early, you may only need a mechanic to drain and flush the ... it should be hard to mix up the DEF tank for the diesel fuel tank, as ...