Originally Posted By: edyvw
Originally Posted By: pwr2tow
Don't know all the European specs or if they even matter. I do know a European spec oil was being used when the Ecodiesel engines were having problems and now a USA spec is recommended instead. It could be just a simple FCA wanted a heavier weight oil but their are European 5w40 as has been pointed out. FCA wants a CJ4 which is now being fazed out and a new and improved formula of CK4. I would also like to point out the emissions equipment on the EcoDiesel is north America equipment not European spec.
What?
You are actually comparing CJ4 and CK with MB 229.51, BMW LL-04? API specs. are not heavier or lighter. You have Euro oils which are heavy and light and meet MUCH, MUCH more stringent specs. then API specs. (which average olive oil in Costco can meet). What FCA is doing is simplifying for average consumer oil choice. That doe not mean you have to use T6, you can actually find much better oils that have lower NOACK, are 5W40 grade and more friendly to SCR system.
ACEA A3/B3 B4 specs. are still more stringent due to wear requirements, stay in grade requirements etc.
By the way, Euro VI and US emission specs are almost same, so yes, DPF will be affected by using T6, which is average oil. Only reason why T6 gain footing among BITOG community is that it was readily available heavy oil that could deal with first gen. DI engines that had fuel dilution problems.
But it is good morning laugh, American are heavy spec. and European are light spec. LOL.
Rotella t6 5w40 CJ4, ACEA E9. Don't know the ACEA of CK4, I assume even better.
By the way, I'm not brand loyal, I like delo.