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 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.
Valvoline Synpower 5W-40 also meets Volkswagen specifications.
i use valvoline 5w 30 and it hasent done me wrong...yet
I also have a 2.0 and run the valvoline synthetic. I started after 2500m and am currently at 29k. No scientific results here other than keeping track of mileage in a little notebook and looking back at the first month compared to the most recent - I'm averaging about 7mpg more.
All these problems are not present in the Valvoline SuperSynth 5W-40 sample. Furthermore, the results from this Valvoline are well below the Universal averages for this engine. This suggests that I should be able to run this oil for at least another 1000-2000 miles and still get an excellent report out of it! With it, my engine runs bit smoother and quieter especially at idle. At high engine speeds the engine feels more responsive and more lively. Another difference is that with Valvoline, I am observing improved efficiency. My 2.0 broke its own record of fuel efficiency: 34.3 miles to the gallon on high way. The improvement is 3.3-3.9 miles per gallon compared to Mobil1.
Interesting. I've been using Valvoline synpower 5w30 since 5k miles, currently almost 75K miles.
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