Sorry if this is too much information. If you want more than just a can of Kroil, you might be better off ordering direct from www.kanolabs.com If there is another product you want, you go to that product and click on the Risk Free Offer. You buy any product and get an aerosol can of anything free. I think the shipping is $5.99. Or you can go to www.kanolabs.com/google and get 2 13 oz cans of AeroKroil for $14.50 + $5.99 shipping. It does say a company name is required but, you can put anything or type in none. As far as penetrating oils to loosen things, there have been test that show ATF and acetone mixed 50/50 beats the stuff you can buy.