Engine oil Castrol or Shell

You need to run the 507.00 spec oil. I have been running Shell Rotella T6 Heavy Duty Diesel 5W-40 oil. They other one that I want to start using and is more widely recommended is Liqui Moly 4200 Top Tec 5W-30. The reason why I mention this is because the 507.00 spec oils has better lubrication then the other 501 and 506 spec oils. If the wrong spec oil is used it has a tendency to produce premature Cam shaft lobe wear requiring the replacement of the cam shafts.

Based on my experience over the years, while switching back and fourth between the Mobil1 and Castrol, is that the Castrol doesn't seem to burn off as much in between oil changes.

My local Walmart sells the Euro spec VW 502.00 Castrol Edge synthetic in 5 quart jugs and I think 1 quart as well. I think Mobil as well, but I stick with Castrol. Of course there is the dealer, too. You can get the cabin pollen filter there too. Very necessary this week. Advance Auto sells maybe 4 brands of full synthetic 502.00 oil. Pentosyn, I think even. Federated (formerly Robbins) will often carry it. I bought my 20,000 mile kit from the dealer so I have documentation for the warranty. Where I am, it is all sand (Granite State) so I tend to change the oil and filter and air filter and pollen filter and windshield regularly. The oil change interval is ahead of the windshield, but not by lots. I do wonder what gets through the air filter and then into the oil. It has to be good for the turbo compressor blades too.

All the local autoparts stores in my area have the proper VW approved oil oil on their shelves. I buy the Castrol that VW uses for the original fill. The weight does not matter much...you are over thinking it.

Castrol Edge 5w40 looks like the best one to get for this car.

5w40 castrol from the factory.

personally, I'd use Rotella T6. It's a full synthetic oil marketed for diesel engines or "heavy duty" but it's a low saps 5W-40 oil that is perfectly fine to use in a gasoline application.

I only had two oil changes and stuck with the OEM Castrol 5w40 :thumbup:

Castro 10- 60 Audi uses it in R8 GT which is NA and not subject to extra thermal loaf of TC. Live in South Florida so cold starts not an issue and Sebring in August is HOT. Also run 50 % VP 103 in summer to cool things a bit and reduce prevent timing loss.

I run the OE Castrol because I still have CPO warranty for another year.