When i buy jugs of oil for my own cars i prefer the oils that have the foil under the cap i think it is more secure and there is a much less chance of the oil leaking out. I see the jugs of pennzoil and some leak and others are a little low on oil but say oil like Mobil they are much less likely to leak or be tampered with. I happen to like Pennzoil especially when on roll back but i lean to the more secure jugs. This is why i don't use my bulk oil at home it leaked on me twice. We are a busy shop and have very little space so i change my oil at home.