Originally Posted By: benjy
i ran Redline 10-30 year around in PA for 200,000 miles before i traded my 2001 1.8T jetta!!! although its not as cold in PA the true synthetic redline is thickens @ a slower rate in the cold, you know that 40 C is 104 F so your group III fake synthetic mineral oil is a lot less vicious on a cold morning when its new + as it ages the viscosity improvers + pour point depressants go away!! if you do a lot of highway + few shorties a real synthetic may go all year!!
Give me a break man.
I saw Passat's with 1.8T using "fake" synthetics with 350k+. For example Valvoline 5W40 MST has better performance characteristics then new Redline 5W40 Professional series. Ester works only as good as other compounds, and as professional series proves, Redline has a hard time cooking really good oil that can also get approvals.
In Canadian winter I would run Castrol 0W40 (which is by the way, PAO based oil) over any Redline. Final product is much more important then whether oil is Group III, IV or V.
Mobil1 5W30ESP proves that point.