Engine oil Mobil 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.

Back when my motor was relatively stock, I ran Mobil 1 - 15W-50 and had no oil consumption/burning. This was back when Mobil 1 15W-50 was a true synthetic not just a group III base stock. The motor has 80k on it when I switched it out (don't remember what the PO ran... I doubt they did either) and ran another 40k through it with that oil.

VW recommend full synthetic 5W-30 or 5W-40. Some owners also use 0W-40 as well, it's easier to find on store shelves. Honestly using the right type of oil and changing it regularly is more important than the brand. Just don't buy the cheap store-brand recycled stuff and you'll be fine. People go back and forth online about brands and stuff but you're probably talking about fractions of a percent better one way or the other. If you still want suggestions: Mobil-1 oil and a Mann filter, there, I said it.

Full synthetic 5w-40 if you can find it, you could run 5w-30 if not. The 1.8t needs around 4.8 qts I believe, so just buy 5 so you have a little left over. Mobil 1 is my go-to oil.

Mobil 1 0W40 and Castrol Edge 0W40 Euro. Those are the best oils for our cars in US. The price is excellent too. I run them in all my cars and equipment. Never had a failure.

Oil change every 5K M1 0W-40, zero oil consumption.

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 have always used 15w-50 on VR6's and 5w-40 on 1.8t's and 10w-60 on the track cars. Try out Rotella T6 5w-40. I ran Motul 5w-40 on my 911 and it made tons of extra noise, went to Rotella T6 under advice from my tuner and it quieted it right down. Been using it on my Saab as well which has a noisy chain setup as well and it worked wonders.

According to [these measurements](https://540ratblog.wordpress.com/), Mobil 1 advanced full synthetic (basic Mobil 1) has a film strength of 117,799 psi whereas Pennzoil Platinum's fim strength is only 99,949 psi.

So then **Mobil 1 is better**.

Honestly, as long as you're changing your oil regularly and not putting Autozone branded oil in, it doesn't matter that much. I like Mobile 1 for NA cars.