so whats new since 2007?

[Garak]

Originally Posted By: Art_Vandelay
My argument here is that although the additive package changed from Green to Amber the PAO base chemistry remained the same as evidenced by the consistent -54C Pour Point.


I agree that you're probably right and that the amber GC hasn't changed significantly since its introduction. However, relying on Castrol's data sheets is problematic.

 

[R4Klimas]

Art, you are right again that fuel efficiency is not really what I am looking for, and I tend to lean toward euro formulation as well. I did have another look on my amsoil just to see, ILSAC GF-5, ACEA A1/B1 A5/B5, and SN resource saving,SM,SL,SJ. Strange I didnt recall seeing SN on there the last time I checked. I also saw your thread about what was the toughest spec to meet and some were saying ACEA A3/B4. I found this for ya. http://www.acea.be/images/uploads/files/2010_ACEA_Oil_Sequences.pdf Im not a chemical engineer so someone else will have to make that determination. I am pretty curious about that as well.


I have never had trouble finding GC before until now. You are right about the data sheets Garak. I cant seem to find a data sheet on the old stuff vs what I am seeing in the store. Castrol edge 0w30 with syntec power technology? it says european formula, and it says made in germany, not sure what to believe without the sheets. Also having trouble finding one on the Pennzoil ultra 5w40 euro.

I did find this cool little article though digging through specs and certifications http://ferrarichat.com/forum/faq.php?faq=haas_articles This guy puts 0w20 in his ferrari,and GC 0w30 in his ENZO and seems to have some pretty good points why! Kinda off topic though, the doctor does not even mention consumption.

Cheers and thanks again for the responses.

 

[Garak]

The problem I find with Castrol's sheets is they often list minimums rather than actual test data. Although I have no evidence, I doubt that GC has undergone much in the way of changes in the past number of years. There is little incentive for them to do so, really. I think they've been playing far more with bottles and labeling than they have with the formulation.

 

[KCJeep]

Originally Posted By: Garak
The problem I find with Castrol's sheets is they often list minimums rather than actual test data. Although I have no evidence, I doubt that GC has undergone much in the way of changes in the past number of years. There is little incentive for them to do so, really. I think they've been playing far more with bottles and labeling than they have with the formulation.



used oil analysis support your idea that it hasn't changed much, if at all. At least what we can see in a cheap UOA hasn't changed anyway.