Smoke Oils

Does any one have links to smoke oil distributors or comments on what works the best for the home Brews. I currently use ParaFlex oil. I did a flow check of my oil system and it puts out about one galon per minute. Not sure how much more I can put out with out making a mess under the airplane. I have a two galon tank mounted on the engine side of the fire wall. I use a high pressure fuel pump from Oriellys, and two .090 inch orfices in the number one and four exhaust pipes. They are about 8 inches from the flanges.
Also what about the additives that you can put in to make your smoke oil smell like grapes, cherry and such?

Jim Knight
Burlington Iowa
RV-6

I have used diesel fuel with good success and also used cooking oil from a restaurant it might make the airport smell like french fries and make people hungry.

I have a friend who uses concrete form oil that he buys by the barrel. It also smells like french fries when he lights off the smoke.

mcb