Thought I had seen it all, but this one has me stumped. I was having trouble with the regulator on my Force 10 barbeque. It would flare-up easily and frost was forming on the unit. I bought a new regulator to hopefully solve the problem. To my great surprise, when I removed the old unit, a few ounces of oil flowed from the regulator onto my work bench. Any ideas how oil would get into the unit ? The only entry point I can see is the pin-point propane gas opening.....it doesn't make sense that fat from barbequing could enter there....could it ? I added a five pound propane tank last year to replace those little one pound bottles, if that is related somehow. Thankfully, we didn't have a grease (oil) fire last time was used the unit.