I went to the airport today and filled my '82 300SD up with Jet-A (Jet fuel). It was $2.95 instead of $3.60 for Diesel. I drove it 30 miles home and let it idle for an hour without a hiccup. It was bone dry when I filled it up, so I know it was burning the Jet fuel on the way home. The only difference I can tell is that it smells like a Citation is in my driveway! For the lack of lubricity of Jet-A compared to Diesel i put half a quart of SAE30 in the tank. Has anyone tried anything like this before?