incorrect fueling protection

Audi is following BMW in introducing a mechanism to prevent misfueling of diesel vehicles with gasoline. It's generally not possible to put diesel into a gasoline vehicle because the larger diesel nozzles won't fit in the filler neck. However, the smaller gas nozzles will fit in the diesel neck. ...

One of the risks of owning and operating a diesel vehicle is mis-fueling. Just as putting diesel fuel in the tank of a gas-powered vehicle will cause some very expensive damage, so to will gas in a diesel tank. The former is largely prevented by the use of two ...