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Originally Posted By: philipp10 Wow, talk about paranoid. What are the chances of someone returning used oil? What kind of neighborhood DO you live it....lol. And the comment that a cap without a seal might allow a company to not over-fill their oil jugs....really? It appears to have happened...

Alright. Well noted. Not buying any oil without a foil seal anymore. Just not worth a second trip if there is a problem locally. Will inform Walmart, and Pennzoil as if it is Walmart; it is hurting their product image. I'll provide an update once I have more info since I'm sure a few are...

Quote: Right. Of course I only have a minor in chemistry so sure, whatever you say. Well, I have the exact same - minor in chemistry. All acids and bases are not water, nor does all acid and base chemistry have to involve water. I don't throw around my degrees or what not... especially if I...

Quote: An acid or base would make no difference, plus an acid or base is water. Acids and bases are not hydrocarbon based. Acid or bases are certainly not just water. Inorganic chemistry vs organic chemistry in regards to acid basic chemistry and their interactions are much different in...

Quote: If its water you'll see very clear separation within seconds. True, unless perhaps it reacted... an acid or base within water or instead of water with the same flow properties as water...

Indeed was Walmart, but I inspected the bottle. No evidence of foul play. I love to assume Walmart, because of all that is commonly done. However, this seems more of Pennzoil's filling error to the bottle. I plan to contact them today if I can. Regardless, oil has a certified standard. If an...

Quote: Did the oil smell funny? It almost sounds like it had a slug of solvent in it or something, though you'd have likely smelled that. If it came sealed from the store, then I'm sure Pennzoil will want to know about it. I suppose anything can happen in the world of mass production, but that...

Quote: How far did you drive it? How does it run and sound now that you have oil in it? The vehicle was driven about 5 miles by the better half. The nasty "oil" was drained, and 6 quarts of oil were poured through directly until the drainage was golden like fresh oil. 6 new quarts of good...

Quote: In my experience, SOPUS oil bottles don't have foil seals but the cap does make the cracking noise when new like stchman said. Your experience will make me check every bottle of automotive fluid carefully before I pour it into my car. O, sorry you are correct. I reexamined the yellow...

Sorry about the image links. Will fix. The bottle was sealed, and safety seal in tact. It seems like too much work to be able to to re seal it and place the black plastic lid with the additional safety seal plastic bottle ring too. Again images were taken from draining the oil after about 24...

Vehicle required 6 qts of 5w20; 5 qt bottle and 1 qt bottle. The 1 qt bottle appeared as usual. The 5 qt bottle made me suspicious, as it poured like water, and appeared somewhat milky fresh from the bottle. I was "nudged" to just use it anyway. After one short trip the next day, with...