Originally Posted By: m6pwr
Did a VOA (no TBN measured) with Blackstone on 5-08 with oil from a bottle with production code beginning with M07... which I believe means produced in 2007.
The following elements/properties were identified;
iron 1 ppm
silicon 6
sodium 6
calcium 1957
magnesium 618
phosphorus 933
zinc 1160
SUS at 210 F 66.3
cSts at 100 C 11.97
flashpoint 455 F
All other elements/properties were listed as nil or 0.
Blackstone comments: Nothing wrong with this oil and it has a strong viscosity for a 0w-30...in the range we often find for 10w-40s.
You can find Product Data Sheets and Material Safety Data Sheets for Syntec on the Castrol.com website. The US site (Castrol.com/us) has a PDS that specifically identifies the Syntec 0w-30 as the "European Formula". The MSDS does not specifically call out the Syntec 0w-30 as the European Formula and it indicates the base stock as "highly refined" which usually means the base stock is Group III.
If you look at the German and UK Castrol sites, I believe the same oil is branded as Edge 0w-30. I can't call up a MSDS from the German site, and the UK site MSDS shows the base stock as "unspecified...proprietary info".
I mention this because practically everyone on BITOG seems to be of the opinion that GC is a Group IV PAO base stock - - but I don't know how they've come by this information.
Thanks for the reply/info!!
I also thought it was a grp. 4 PAO base, maybe even with a smidgen of grp. 5 esters thrown in for good measure!!
The elfen experts better chime in on this given info.