Recycling Old Vegetable Oil

I don't think I have enough old vegetable oil in my kitchen to figure out how to recycle it for my car. I don't own a diesel engine anyway.  I did find a little bottle of oil that is way too old to guess about it.  I'm saving it to use on those sticky price tags.  A little oil rubbed on them and then they soap off pretty well.

Additionally, I'm including a homemade playdoh recipe.  This is great stuff and cheaper than the store kind.  Cook on a low heat stirring constantly.  The pan will be ruined for this project only, but you can use the pan to make more playdoh.  Anyway, my pan was scorched too much to use for cooking anymore.  As you stir it and it takes only a few minutes to set up, it gets harder and harder to stir.  When it looks right pour it out onto foil so it will cool faster and then you can put whatever color you want to mix into it.

2 cups flour

2 cups warm water

1 cup salt

2 Tablespoons vegetable oil

1 Tablespoon cream of tartar  (sort of expensive stuff, but recipe doesn't work without it)