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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 February 15th, 2020, 08:21   #16
turbobrick240
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The oil incompatibility concerns are largely a holdover from mineral oils of the last century. There is really no cause for concern when mixing synthetic oils. Especially when mixing synthetic oils of such tight specifications as VW 507. Tikal's spring water analogy is actually quite apt.
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Old February 15th, 2020, 09:29   #17
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Quote:
Originally Posted by hskrdu View Post
But the M1 ESP 5W-40 isn't VW507, right?
Correct, 5W40 oils do not meet 507.00 spec.

Though, it is low ash and meets the same mercedes specs as the ESP 5W30, it wont harm anything to use it.

Edit: The NON-Delvac Mobil 1 ESP 5w40 is fine. Do not use the Movil Delvac 1 ESP 5w40 in a stock common rail TDI.
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Old February 15th, 2020, 09:43   #18
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Delvac1 5w40 ESP doesn't meet MB 229.51. Too much ash.
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Old February 15th, 2020, 11:37   #19
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Oh. I thought he was talkinga bout regular Mobil 1 ESP. Not delvac
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Old February 15th, 2020, 18:37   #20
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Quote:
Originally Posted by jjblbi View Post
Mobil Delvac 1 ESP 5w-40 for me for the last 150k miles. Good luck, John
Quote:
Originally Posted by hskrdu View Post
But the M1 ESP 5W-40 isn't VW507, right?
I'm familiar with the oil, the ash content, and the threads on why VW may have gone with a 30 weight over a 40 weight. I was pointing out (mostly for the OP) that the oil referenced by jjblbi may not be the choice for someone with a 2015 Passat and warranty concerns. Given that some dealerships have service managers who, for whatever reason, make life difficult for owners, the OP should be tracking oil specs.
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Old February 16th, 2020, 21:11   #21
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Quote:
Originally Posted by JSWTDI09 View Post
Mobil 1 ESP-M will never be 507.0 approved because all 507.0 oils are (by definition) 5W30 oils. There is no such thing as a 5W40 oil with VW 507.0 approval. That said; the ESP-M 5W40 is a low SAPS oil so it would be safe for our emissions system.

This question has been discussed here several times with some members using the ESP-M formula and some preferring the 5W30 ESP formula. Some info:

The ESP 5W30 actually tests to be about a 5W38 motor oil in VOAs.
IIRC:
The ESP 5W30 is made in Europe and is sold in 1 Liter containers.
The ESP-M 5W40 is made in the US and it comes in 1 Quart containers.
This means that they are likely made from different "base stocks". I'm no oil chemistry expert, but some of the experts here prefer the European base stocks.

In summary, either oil is safe for your emissions system. Both are excellent lubricants. I would definitely stick with the 5W30 while my car was under warranty. After that it's your choice, but I plan to stick with the 5W30 507.0 Mobil-1. Others disagree.

Have Fun!

Don
https://forums.tdiclub.com/newreply....eply&p=3883163
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Old February 16th, 2020, 21:30   #22
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anyone remember the days when there were only say 20 oils for everything, and diesels could run on peanut butter? them things would eat anything you threw at em from what i know lol. little oil from the kitchen frying pan and you were on your way to town.
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Old Yesterday, 01:24   #23
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The Mobil1 Formula M ESP 5w40 was discontinued quite a few years ago. I doubt there's much old stock out there.

Last edited by turbobrick240; Yesterday at 01:27.
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