[SADXA] dummy load oil??

[Ron Jones]

Anyone have suggestions and/or sources for oil for a dummy load? I have a
Heath Cantenna dummy load that requires about a gallon of oil. Years ago, I
replaced the original, probably with PCB's, oil with the currently
recommended stuff. However, shortly before I moved to Tucson, my trusty
cantenna sprang a leak and most of the oil ended up on my ham shack floor.
Does anyone know of a local source for more oil. I need a gallon of the
stuff.

Thanks. 

Ron  K7RJ