I run Eneos 0w-20. Lots of people love Mobil1, if only because it is often on sale at WallyWorld.
I went with the Castrol Edge 0w-40 because it's a great oil with a good PAO content. It's also fairly inexpensive. I'll sacrifice the rebate on Mobil 1 as this oil seems to hold up better for my driving style over 10k miles.
I typically use Castrol Edge 0W-40 at 5000 mile change intervals unless my annual service interval comes up at the dealership.
I personally use the Castrol 0W-40 that meets the VW 502 spec. Per the Bob is the Oil Guy forums, it’s one of the best oils out there and is available at a great price from Wal-Mart, at ~$25 per 5qt jug. I’d use this oil in any VW and not think twice.
I run German (Belgian) Castrol, which comes in a 0w-40 or 0w-30 weight. In general, it's better than the US spec stuff that sage149 posted because Europe has stricter oil standards than the US and it holds better certifications like MB229.5. I mainly run the 0w-40, and while I only have 13k miles, it does include 4 track days and the oil level doesn't change in between oil changes.
I use Castrol Edge 5W-40; works just fine
Glad to be of help helmyv5. In one message, I mentioned I'd try a more expensive oil next time. I've now been running Castrol EDGE FST-Ti for the last two oil change intervals. Normally, oils are very hard to tell apart from one another (Like how the engine sounds, gas mileage, other \"seat of the pants\" stuff) But, this time I can definitely spot one difference, which is noticeably less sludge in the PCV system than with the Helix Ultra.
Eneos 5w-20 in my 2008 2.3 liter Mazda3. It's a Japanese-branded synthetic oil that you can get from Napa Auto. I've found that with Eneos, my Mz3 stops consuming any oil (in both my 2007 and 2008 2.3's).
Castrol Edge Professional 0W-20 seems to be the VAG recommended oil for their 508.00 requirements. Everything I’ve read about the 0w oil has been positive as it holds up extremely well in cold weather and severe heat.
As much as I love to use Mobil One, I am going to stick with Castrol because VW dealership won't give me any credit for the Castrol in exchange for the Mobil one.
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