A friend bottled, boxed and shipped this product in S. CA in the 60’s. We already knew it was great as we used it to get seasonal equipment unvarnished and purring after being idle all off season. Later working in a garage it was our prime tune-up solvent for fuel systems. I have always used this product for any fuel system and will never look back. It’s the best! B-12 & Marvel – The Magic Team!