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OK, thanks.

I understand that I should use the most recent spec, the question is how do I tell if the bottle doesn't list a year on it (and I'm looking online where there's no expiration date to guess from)? Or am I still misunderstanding something? Thanks for the A#/B# link, I'll have to look into that more.

Originally Posted By: Quattro Pete It represents a range of kinematic viscosity that an oil will have at 100 deg C, according to sae j300 table. Uhh..... in english?

Originally Posted By: aquariuscsm A viscosity comparison I see all the time that is completely false is that for example a 5W50 and mono grade 50 are the exact same viscosity once at operating temp. This is completely false. Use both and drain hot. The 5W50 is like water compared to a mono grade...

Originally Posted By: mazdamonky Everything I have seen on Magnatec shows good UOA's That's the question though; is everything just sticking to the inside of the engine and not draining out with the rest of the oil to be analyzed? Is that something that can actually happen?

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...

I was under the impression that magnatec had a pretty good rep here on BITOG with a lot of people being positive on the concept. I fully admit I don't understand a lot about oil and was hoping some of the people who really liked magnatec might chime in with their opinions or an explanation of...

Originally Posted By: SR5 3 they go by years, so A3/B4 from 2012 supersedes A3/B4 from 2008. You should only use the most up to date sequence, but some people cheat a bit. I'm a little confused here. When I look at oils online they just say things like "ACEA A1/A5", how am I supposed to know...

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...

Ugh yeah, I found that last link already.... it derailed pretty quick into people arguing about 'hurricane oil'.... As for the first link, I don't know oil analysis reports from a hole in the wall, but from what you and others are saying it's a good result? I don't even know what I'm looking...

Anyway SR5- do you happen to know offhand any specific informative threads on BITOG where people were discussing magnatec and magnatec-like oils? I'm using the search but searching for 'magnatec' yields a million results and it's taking me a while to go through all of them. I don't want to start...

Six months yes, synth yes since that was the popular opinion here, name brand was never a question. I'm still might talk to him again about the 0w issue though just to see if I can't figure out which of us is confused about what or if it's a stupid communication gap. I'm just not going to try...

Originally Posted By: wemay Quartz, all i can say is, if your friendship is predicated on you not upsetting him because of an oil choice... you don't have a friendship. It's not a simple case of "upsetting him", relationships are based on give and take and nobody's perfect. If you have to win...

Originally Posted By: mazdamonky A synthetic oil change done yourself Originally Posted By: wemay Wait, i thought we were discussing oil and oci for your car, not his. I have no way to do any work under my own car, I can't even GET to the oil filter or drain without a lift. I don't want to...

Originally Posted By: kschachn Why are you running it past him? Aren't you capable of understanding it to the point of dismissing outright his misunderstanding? Because he's otherwise a good guy and the only mechanic anywhere near here that I trust not to screw me over. I'm not not about to...

Originally Posted By: Garak Some geographical locations have a lot of sales going on all the time, or good everyday prices, and lots of competition. Others do not, as we see in the thread already. If you live in a small town 100 miles from anything resembling a major centre, your purchase...

Originally Posted By: SR5 Castrol Magnatec 5W-30 semi-synthetic. Hmm, ok I'll check that one out, thanks. Originally Posted By: Garak Considering that it gets thinner as it warms up, how can it be too thin when it's at its coldest, but not too thin at operating temperatures? That is a good...

Originally Posted By: SR5 all the options given should work much the same. Yeah I know. I admit I'm basically micromanaging here, but I still feel like one of these has to be at least a little better than the others for my use case. Originally Posted By: SR5 6 months, 12 months I'm pretty set...

Oh I readily admit he's not exactly the smartest guy on earth- he knows nuts and bolts... physics and chemistry not so much. I've gotten into more than one argument with him over stupid [censored] (for example, he thinks drum brakes are better than disc because drums have a larger shoe and...