Originally Posted By: lubricatosaurus
Originally Posted By: Jake777
I don't understand your point. You say synthetics pass SN by a wide margin however you have no proof of that.
Proof is in the fact that dexos1, which is tougher than SN, has formulators being forced to use more expensive, performance oriented Group III oil to blend in to Group II. Wear requirements, WPD, etc., are tougher for dexos1, and observe how you can't do it with Group II SN-level oils. Then look at GM 4718M and the even tougher euro specs which require a minimum of full synthetics to pass all the tougher tests.
Also, I've seen Sequence IVA wear test results published that show full synthetics at about 20 microns out of a max of 90 allowed. Google it all to your heart's content, I'm not going to. Kendall GT-1, Mobil1, Castrol Edge, Pennzoil Ultra, Amsoil etc., all at one point or another have boasted about test results in their marketing, all with better results than the Havoline conventional's marginal test scores.
Ok I get your pint. I would just say it's not common for anyone to show you the APi test results and I found it refreshing. Lastly I will say I dislike how the oil compamies have gotten everyone using the term synthetic to identify better quality. I just fell it's simply chemical engineering and they can make good,better and best but we are all taught to think about it likes it's a natural difference between these two completely different oil types when they are likely closer to each other than they are apart. I wish customers would demand the performance data rather than just be told hey Super Platinum Ultra Titanium Synpower Plus is way better than "conventional boring" oil. Don't tell me it's synthetic tell me what it does and how it does it with numbers. I don't care if you make it out of mud.