Originally Posted By: BTLew81
I'm anxious to see the new stuff, and hope we see the ESP as well. Even though it's lower SA and "lower" tbn, it's still pretty stout and worth using if you are worried about intake deposits (aka, me)
I realize that you are concerned with intake valve deposits, but in the other thread that you started regarding oil for your VW 1.8T, bobbydavro (an obvious industry insider who has a wealth of knowledge and who has responded to people on the forums with nothing but high quality info) said this:
Originally Posted By: bobbydavro
They [Lubrizol] are wrong
Imagine if you could compare a LZ 504 oil to other oils including Mobil 1 0W-40 in the FSi test.
...and this:
Originally Posted By: bobbydavro
Well as 504 is the only spec that needs to pass the FSi test it is very easy to make claims that 504 oils are better for valve deposits. They also need to be low SAPs to pass the VW DPF test.
However this means that other oils dont normally run the test, unless of course you run it for research purposes.
Basically 502 oils would appear to perform very well in the FSi test.
...and this:
Originally Posted By: bobbydavro
In my view SAPs level is not related to the Valve deposits. Additive type, VM and Base oil viscosity/type are more important factors.
Anything with 504 will be good for valve deposits as they have been proven in the VW FSi test, however that's not to say other stuff isn't good / better. I have seen surprisingly good results on 0W-40s
Originally Posted By: bobbydavro
I'd be happy with most 0W-40 A3/B4 oils with VW 502 / 505.
That is one huge "hint" from a technical industry insider. If I owned a DI engine, I'd happily follow his advice as he seems very certain (likely meaning that he's personally seen the proprietary test results that back up his statements).
But anyway, back on topic:
I have no idea why so many people on this thread are concerned about the "lower" HTHS as if it's a problem?
All of the relevant specs that this oil claims (and will claim?) to meet all require an HTHS of >=3.5 cP. Also, as Overkill pointed out, the original pre-visom M1 0W40 had very similar viscometrics, and was a great oil back then. Furthermore, so many people have used and loved GC / BC 0W30, with "only" an HTHS of exactly 3.5, but it has never failed to protect the Euro (and non-Euro) engines that is was installed in over the last decade (or more).
I'd use the new M1 without even thinking twice, and reap the benefits of slightly easier starting/cranking when the weather is really really cold (like it was in previous winters). And we all know how well a GTL base stock can perform in a properly engineered oil.
