Originally Posted By: UG_Passat
Originally Posted By: edyvw
Originally Posted By: UG_Passat
Originally Posted By: edyvw
European manufacturers are very, very specific about NOACK.
Average American does not drive GTI.
Not sure how CAFE is stupid, but some people survived 20th and moved to 21st century. I understand that in some parts of the U.S. (like in my neighboring states) it is still struggle to move to 20th century.
VW only allows a max NOACK.
502.00 is 13% max
504/507 is 11% max
MB also calls for max NOACK, which ranges from 10% to 13%
It's no more specific than the ILSAC GF-5 and API SN specification, which is 15% max. VW & Benz call for a tighter limit. That doesn't qualify as "very, very specific"
I would say it is very specific as there is huge difference between NOACK above 10% and below.
If that is not big deal, then I am not sure why Castrol 5W40 does not meet MB229.5, or why ILSAC GF-5 oils do not have lower NOACK, just for fun you know.
http://www.pqiadata.org/Mobil10W20dexos.html
GF-5 oil with NOACK of 10.7%. You're right, GF-5 oils do not have lower NOACK.
MB229.5 has a limit of 10%.
502.00 has a limit of 13%.
That's probably why MB229.5 (produced at the NOACK limit) can meet VW502.00 NOACK, but not the other way around (produced at the NOACK limit).
But, according to Castrol PSD, the 5w40 A3/B4, the Castrol oil you loath, it meets MB229.5
https://msdspds.castrol.com/bpglis/FusionPDS.nsf/Files/39135439C56B30BB8025824F004B1E87/$File/BPXE-AX39RX.pdf
And according to MB themselves, Edge Professional A3 5w40 and Edge 5w40 A3/B4 meets 229.5 and 502.00/505.00
Both are FST oils with the same properties on the PDS
https://bevo.mercedes-benz.com/bevolisten/229.5_en.html
Castrol PDS you posted is European Castrol 5W40 which meets MB229.5.
When you looking at pds, check at the bottom which country pds originated from. In this case it is UK.
We get 5W40 specifically made for the US here in the US and IT DOES NOT meet MB229.5.