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Fuels & Lubricants Discussion all about Fuels & Lubricants. synthetic oil, conventional oil, brands, change intervals, diesel grades, gelling and such debated items like that. Non TDI related postings will be moved or removed. This forum is NOT for the discussion of biodiesel and other alternative fuels.

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Old June 23rd, 2017, 12:38   #1
New Mickey
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Default "507, 505, Amsoil, blah blah blah"....but what VISCOSITY?

My 2015 Passat owner's manual vaguely mentions two different motor oil viscosities. I find it hard to believe they're so uptight about "507.00 or else" but don't even seem to care much what WEIGHT of oil to use.

Thoughts? I want to obsess about it, but I'm not sure which one to obsess about.

-mickey
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Old June 23rd, 2017, 12:49   #2
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Quote:
Originally Posted by New Mickey View Post
My 2015 Passat owner's manual vaguely mentions two different motor oil viscosities. I find it hard to believe they're so uptight about "507.00 or else" but don't even seem to care much what WEIGHT of oil to use.

Thoughts? I want to obsess about it, but I'm not sure which one to obsess about.

-mickey
so what did they mention?
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Old June 23rd, 2017, 14:32   #3
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Viscosity? there is only one for the common rail. Fill us in.
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Old June 23rd, 2017, 14:37   #4
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Quote:
Originally Posted by New Mickey View Post

Thoughts? I want to obsess about it, but I'm not sure which one to obsess about.

-mickey
Take some time to read the spec. They specify a minimum viscosity as part of the criteria. The VAG oils tend to be "thick" oils.
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Old June 23rd, 2017, 15:02   #5
New Mickey
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Take some time to read the spec. They specify a minimum viscosity as part of the criteria. The VAG oils tend to be "thick" oils.
I quote the owner's manual:

"Your engine was filled with a high-quality, "synthetic" all-season engine oil that meets strict Volkswagen oil quality standards and has a viscosity grade of SAE 5w40, or SAE 5w30. You can use this oil for normal driving in all temperatures."

A chart shows: "Diesel engines......VW 507.00" No diesel-specific viscosity recommendation.

I've owned a lot of cars, including VWs, and I've never seen an owner's manual that doesn't specify a single grade of oil, or provide a temperature-related chart of what viscosities to use. I also find their statement that they filled the engine with "one or the other" to be odd. Don't they know? Weren't they there? "Whatever" seems like an un-German specification.

What I DO know is that the viscosity that is correct for a given engine depends largely on internal tolerances. Thicker doesn't necessarily mean "better protection" if it can't get to where it needs to be. I'm curious what the engineers intended, and why that information isn't being conveyed to consumers. (We shouldn't have to "research" beyond reading the owner's manual, right?)

Further adding to the oddity: The entire section of the manual is chock full of persnickety, anal-retentive German detail about EXACTLY how to read the dipstick, and several paragraphs about the importance of using EXACTLY the right oil lest the world spin off its axis. That sounds like VW. Did the folks in Tennessee add the "whatever" language?

So what are y'all using? 5w40 or 5w30? And why?


-mickey

p.s. As with all things "oil" it's probably just arguing about how many angels can dance on the head of a pin. But that's what gearheads do.

Last edited by New Mickey; June 23rd, 2017 at 15:07.
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Old June 23rd, 2017, 15:03   #6
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It's also possible that they MEANT to say that the diesel is one viscosity and the gasser is the other. If that is the case they entirely failed to say so clearly.

-mickey

Last edited by New Mickey; June 23rd, 2017 at 15:08.
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Old June 23rd, 2017, 15:06   #7
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All 507 oils are either 5w30 or 0w30. I don't use 507 myself, but it is a pretty good spec.
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Old June 23rd, 2017, 15:16   #8
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A chart shows: "Diesel engines......VW 507.00" No diesel-specific viscosity recommendation.
If it meets 507.00 or whatever VAG spec, it meets the minimum thickness criteria whether 0W30 or 15W50. Again, all the VAG oils tend to be "thick" in the bigger scheme of oil viscosities today. They are remarkably similar. They are not energy-conserving.

Look at the spec. The thickness criteria has been defined and is verified by VAG's testing.
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Old June 23rd, 2017, 15:18   #9
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There is a discussion on this subject elsewhere in the Forums which includes an example of an Audi TDI manual insisting on a "5w40 meeting 507.00". Apparently no such animal exists.

The owner's manual does not contain details about 507.00. No owner can reasonably be held responsible for what isn't in the manual.

My best guess, based on research that goes far beyond what any customer should have to do, is that I must use 507.00 AND for practical purposes that limits me to a 5w30. I guess I'll take that as my answer. But it would be nice if the people who wrote the manuals actually knew what they were talking about.

Does 507.00 actually specify 5w30 to the exclusion of all others, or is that just what happens to be available?

-mickey

p.s. Does the average non-gearhead give a rat's pink booty about "VW 507.00" or is he just going to look at the viscosity recommendation? Based on my owner's manual the average non-gearhead is obviously going to assume that 5w40 is an option. And an old-school gearhead is going to think, "Hmmm.....it's a turbo, and a diesel, and my Cummins uses a 40 weight.....so 5w40." Both are reasonable interpretations.

If they want 507.00 5w30 they should say so. Don't suggest there are options that don't exist.

Last edited by New Mickey; June 23rd, 2017 at 15:22.
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Old June 23rd, 2017, 15:25   #10
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I guess Amsoil did their research. The ONLY oil they list for the 2015 Passat TDI is the 5w30 European Car formula which meets 507.00.

For what it's worth Amsoil says that stuff is specifically APRROVED BY VOLKSWAGEN. Not "meets VW specifications." APPROVED. Make of that what you will. (And I'll bet you will.)

-mickey

Last edited by New Mickey; June 23rd, 2017 at 15:28.
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Old June 23rd, 2017, 15:26   #11
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Yeah, the 507.00 oils were always "5W30", by definition. I think there's something else today, maybe 0W30?? I lost track long ago.

Remember:

"the HT/HS viscosity minimum is 3.5 cP"

VAG has really dumbed this down (for Americans). You don't have to see or understand the spec. If the bottle of oil says 507.00 on it, and is on VAG's list, you're done. There is literally nothing else to fret about. They've covered it in the published spec(s) and they have tested the oil in their lab.
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Old June 23rd, 2017, 15:32   #12
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Note the distinction. Amsoil lists the oil as "meeting the requirements of" API, ACEA, BMW, Mercedes-Benz, GM and Chrysler specifications.

Then, in BOLD PRINT, specifically says "MANUFACTURER APPROVALS: VW 504.00, 507.00"

That, folks, means "CERTIFIED." Volkswagen has specifically approved that particular Amsoil product for use in the 2015 2.0 TDI engines.

So at least THAT stupid debate is laid to rest. (Yeah, right....sure it is.)

-mickey
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Old June 23rd, 2017, 15:34   #13
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Yeah, there are also 0w30 507 oils. I know mobil makes one.
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Old June 23rd, 2017, 15:35   #14
New Mickey
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Originally Posted by dieseldorf View Post
Yeah, the 507.00 oils were always "5W30", by definition. I think there's something else today, maybe 0W30?? I lost track long ago.

Remember:

"the HT/HS viscosity minimum is 3.5 cP"

VAG has really dumbed this down (for Americans). You don't have to see or understand the spec. If the bottle of oil says 507.00 on it, and is on VAG's list, you're done. There is literally nothing else to fret about. They've covered it in the published spec(s) and they have tested the oil in their lab.
I'm not fretting over the oil. The existence of this thread demonstrates that I'm obviously on the "spectrum" when it comes to oil. (You have to be a bit loony to even worry about motor oil.) I'm fretting over the poorly written owner's manual that leaves a VW owner to either guess, or do research beyond the manual that he shouldn't have to do. But I'm satisfied that my question is answered: 507.00 and 5w30. (I've also read there are 0w30 oils that meet 507.00, but that viscosity is NOT mentioned in the owner's manual.)

-mickey
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Old June 23rd, 2017, 15:35   #15
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Nah, look where I said to cross reference your preferred oil against VAG's published lists. I can't find the word AMSOIL on the published list ... they meet and exceed everything on the planet
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