Engine oil VALVOLINE or RED LINE

Sticking with a single weight is a better idea than mixology IMO..

I use 20/50 Valvoline year round....

I have been running redline 5W40 since 5k miles in my 08 GTI and I noticed an immediate improvement in turbo spool up. Others have noticed this improvement on other turbo cars as well.

I was recently obsessed with oil in my 01 1.8T. I was at http://www.bobistheoilguy.com alot and determined that Valvoline Synpower 5w40 was the way to go based on oil analysis and availability. Castrol Syntec 5w40 appeared to degrade faster and the viscosity wasn't near as good as the Sypower after only 3k miles on it. IMHO Synpower outperforms Syntec in our motors based on actual facts and numbers from the oil analysis.

I am planning on using redline 5W40 which is not on the vw approved list but has an awesome HTHS viscosity and I have used it in my boxster S with big improvements over M10w40.

I use only valvoline 10w60 in all turbo motors

Valvoline Synpower 5w 30 is on the approved list for VW usage, doesnt make it THE choice but whatever floats your boats I guess and in this case it looks like R P floats you the best

Valvoline SynPower full synthetic ) 5-40 (P/N VV966) is not on the VW approved oil list. But it certainly is approved, just read the label on the bottle:\"VW 502/505/505.01\"

A lot of the guys I know ended up running valvoline VR1 20W-50 (A Dino oil, fwiw) because that was the only thing that keeps their rod bearings alive for more then a couple of weekends. Switching from thinner oil to that made the difference between changing bearings every couple of weekends to once a year.

I've been running Redline or Royal Purple 40wt