[mc1]

Originally Posted by Silly Moustache

I am always cautious about putting diesel in my Petrol driven car, or vice versa.

Especially as in the USDA the pump handle colour codes are the wrong way around - i.e. black for petrol and green for diesel.

There ARE at some fuel stations a different sized pump for LPG.

However I have never heard of this DEF (can't even find a Googled reference to it - Why is it available at a pump and what is it for?

http://en.wikipedia.org/wiki/Diesel_exhaust_fluid