Originally Posted By: TiredTrucker
Originally Posted By: edyvw
Originally Posted By: Trav
This is a 0w30 Dexos 2 engine in many parts of the world (Dexos2 is not just a diesel oil, only in the USA because of CAFE). A 0w40 or Dexos 2 5w30 will work well in it.
You will never find Castrol EDGE Professional Titanium FST C3 0W-30 in the US so use the 0w40.
The reason why companies are not bringing more C3 oils is sulfur rich gas. However, it seems EPA will require next year for ULSG to be sold.
30ppm sulfur is hardly "sulfur rich". Pre 2007 Diesel LSD was 500 ppm sulfur till coming down to ULSD 15 ppm. The move from 30 ppm sulfur to 10 ppm sulfur in gasoline is like straining at gnats more than any appreciable difference. Just a way to add cost to the consumer.
Yes it is rich, and here is why rich and why it adds to cost of ownership of DI vehicle.
While most of drivers are oblivious what is under the hood, and some think all EPA requirements are the way for government to "get" them, it is a huge problem in DI engine applications.
For example, M1 0W40 oil that has (or had, we will see how new formulation does) stout additive package, in my previous car, VW CC, would get its TBN depletes from 11 to 2.7 in 5K. Now, it is not a problem if you change oil every 3K but it could be a problem if you change it every 5K and you use wrong oil which is often case.
500ppm is not a problem in indirect injected engines using High-SAPS oils. It is big problem in direct injected diesels and especially gasoline engines.
Technology is moving forward and people are buying cars that have new technology under the hood hat provides good MPG. Adding cost to consumer is that we have to change oils due to high sulfur gas much sooner then in the EU where they run 15-20K OCI's. Dividends of new technology. Only reason why diesel went from 500ppm to 15ppm is trucking lobby since high sulfur in diesels tarted to create additional cost to fleet. Unfortunately, regular drivers do not have their own lobby to fight XOM, Chevron etc.