Bill,
My homegrown recipe is similar to the one Nelson posted, but different too.
In a large plastic bucket (the best buckets are the ones cat litter comes in because they have a sealing plastic lid). I place --
-- 2 quarts of kerosene**
-- 1 quart of citron scented lamp oil** (just to make the mixture a little easier on the wife's nose)
-- 1 pound box of parrafin wax (found in the canning section of grocery stores or walmart...)
-- 1 quart of auto transmission fluid
**Note, you can also use diesel fuel, all kerosene or all lamp oil, whichever suits you best.
I don't grate the wax, I carefully melt it in a double boiler - (Place the wax in a stainless steel bowl and into a pan of simmering water to melt.)
Once melted, I slowly pour the wax into the above mixture and stir it with a wooden handle until mixed.
Instead of light machine oil to thin, I use transmission fluid. It turns the mixture pinkish brown, and makes it a little easier to see when sprayed or brushed in cavities or the bottom of the car.
The mixture will set up into a thick jel-liquid. The colder, the more solid.
To apply, I wait for a hot sunny day and put the bucket outside for a while to heat up and put in a cheap pump up garden sprayer to apply. The sprayer I have has a long nozzle to reach up behind the rear quarters in the boot and into the jacking holes ect..
If it is still too thick, I put the sprayer into a bucket of hot water for a while until it turns very thin and sprayable..
It will come out as a liquid, but sets up fairly quickly again after applied.
It will drip for a while, so apply somewhere outdoors where you don't mind some drips. It also occasionslly drips on very hot days when the car sits in the sun for a while.
The above recipe makes enough to last a few years for one Midget or to do several vehicles, but it stores well.