a day or so but I didn't have time to respond and now I can't find it but....
Both dieseling and detonation is the ignition and detonation (although under different conditions) of low flash point lubricants due to the high temperature generated during the rapid compression of air in a spring-piston air gun. Since the air is heated to as high as 2,000 degrees F for a fraction of a second upon firing, only high flash point lubricants should be used. This eliminates the use of almost all petroleum based lubes and many synthetics used in springer airgun's. This is especially true regarding the use in lubing through the port or in the barrel, and something that should never be done. They will cause dieseling and detonation that can quite easily damage the gun and also possibly injure the shooter. I've seen compression chambers in the past that were split wide open by people using Slick 50 to increase power and have read about an instance where the spring block locking pin sheared off and the block and spring tore out the back of the action. Not good.
I can only say be very careful what lubes you use and where.
There is an article in the library maintenance section that I wrote some years ago called "All about lubricants" that might help.
