I've never heard ov Varsol before, will have to look into that product. But I can tell ya that Simple Green is a great product and is viromentally friendly, I know it will not hurt your paint whatsoever and still cleans tough road film from your car. I've been told you can drink the stuff and even though it taste awfull it will not hurt you or poisin you. I'll just take their word for it. :thumbup: