Ya. The spray degreaser does smell like diesel but it's mixed with something to make it water soluable. It still is after thinning with kero. I read the back of a gallon can of GUNK degreaser it says to mix it with 5 gallons of kero. That's where I got the idea to mix it with the spray cans. My eight dollars worth of degreaser has lasted 2 years so far. The sludge settles to the bottom and I clean it out before I use it if it's been sitting for a while. There's no grease to tough for it so using harmful chemicals really makes no sense. Most of the good degreasers that we used in the machine shop are banned now by the EPA.