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AudiDoc, ASE Certified Technician
Category: Audi
Satisfied Customers: 6567
Experience:  Independent European garage owner. Over 20 years experience
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I have just put 2.5L of unleaded into my A6 Diesel (09 model).

Customer Question

I have just put 2.5L of unleaded into my A6 Diesel (09 model). I then topped up with 40L of diesel. Will this be OK?
Submitted: 4 years ago.
Category: Audi
Expert:  AudiDoc replied 4 years ago.
I have to say without reservation, do not start or drive this car for any further distance or time. It's very likely that you can cause severe engine damage if you do so, which could cost thousands to repair. The car will have to be towed to a garage, all fuel emptied out of the tank and lines, and new fuel added.