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I have a basic question I want to try and clear up really quick since I can't seem to find any authoritative source that explains this one way or the other (just a bunch of blog posts that all disagree). Normal multi-weight oils work because they have added chemicals in them that modify their...

So magnatec's whole thing is that it creates a sort of semi-permanent sticky film that bonds to metal and coats the inside of the engine so it doesn't fully drain back down when the engine is shut off, right? Someone made an interesting point: wouldn't this also mean that half the stuff created...

I want to make sure I understand API/ILSAC/ACEA classifications correctly, hopefully I can get a quick yes/no on the following questions: 1) API ratings are in alphabetical order and each letter supersedes the one before it, correct? If an engine requires an oil that meets API SL, then an oil...

This is the world's worst noob question, hopefully it's not against the rules. I have not bought my own oil in AGES, like, before online ordering was a thing. I have absolutely no idea where to start, what brands/websites/stores are reputable these days, or what typical prices are. Is there a...

(The full title of this post is supposed to be "ULTRA HYPER low mileage + short-trips car: should I use conventional or synthetic oil? Does it matter?" but I can't fit all that in the subject line) I live in a northern state area with zero public transportation, so I need a car. However, I work...