Did you ever find out whether or not you can use KT oil with a Jetcat. I've switched from DTE Light to KT oil almost a year ago with no problems. From what I have read the KT and DTE light oils are similar but the KT has some additives, not an expert just my opinion. All my turbines, Kingtech, Jetcats and Jet Central run fine on the KT oil. Will have to wait for service to find out what the long term effect is. KT is the only manufacture that I've seen that has reported about different oils and their effects. Realize every turbine is different but if the application is the same and the temps are the same it seems to me the oil should respond the same. Anyhow just curious.