Originally Posted By: Hondacity
What does the volatility affect? Currently using motorcraft synblend 10w30 sn/gf5 and after 2500km, the engine is rougher compared to the previous oil used. Drove the 2.0 elantra rather hard, 3200rpm 90mph more or less for about 2000km. Still gets me 32mpg though.
I think this motorcraft is more of a conventional than synthetic. Whats the oci for this synblend for ford vehicles?
The higher NOACK can lead to deposits, oil loss, or thickening if it's too high. 15% is not high though, this is a very tough test and most conventional fall right around the 15% limit with synthetics closer to 10% but with a large variance it's hard to generalize.