Originally Posted By: kschachn
Originally Posted By: Jeffs2006EvoIX
So if posters are saying 0w40 Castrol started at 90% PAO and was considered "Synthetic" to German standards, since has dropped to HC status in Germany. Is this when it switched to being produced in Germany to Hungary or wherever its made now?
So if to be considered "Synthetic" to Germany standards is over 50% PAO, it now sits at under 30% so now its basically a Group 3 Oil now? mmmmm
May be time for me to give the Redline 5w30 a try now. I am out of warranty on my VW and I only drive the car like 2k miles a year. Maybe the Group 5 base stocks would be better for me and the cold starts of not driving my VW for weeks at a time? Thoughts on that?
For your application, how is the current Castrol 0W-40 deficient as opposed to what it may have been or was before? Did it lose a specification you require?
Also, you have temperatures there in California that are "cold starts" which even come anywhere near where a 0W oil makes a difference?
No it didn't lose its spec and what I mean by "Cold" start should really be "Dry" start. If you dont drive your car for a month you can cause allot of wear waiting for the oil to get to all the metal surfaces. Ester Based Oils like Redline are supposed to cling to the metal more tenaciously than PAO or GTL type oils.
So in my cars case, being driven so little, the Ester Base Stocks of Redline may help reduce "Dry" start wear.
That is my theory to why I want to try it.
As for 0w oils? Doesn't matter where you live, a 0w oil is going to flow quickly to get your oil circulating as quick as possible. It may be minimal difference in warmer climates vs extreme cold climates, yet still useful I am sure.
Jeff