Engine oil Mobil or AMSOIL
Any major brand of the correct rating and viscosity will work.
That being said, I have an 05 that was used as a DD for 12 years. Short trips, 3 days a week. After 12 years and 47K miles, I added a aftermarket supercharger. Put another 20K on it, including trips to the drag strip and track days.
I then had it rebuilt with forged internals because I wanted higher boost and more power. When the engine was pulled apart and measured. There was no wear. The cylinders were still within factory specs as was the crank.
I had used Amsoil SS 0W-20 the whole time.
Mobil1 and Castrol are all I’ve ever used on my 266k mile 09 rabbit. I replaced the valve cover in nov 21 and that engine was super clean inside. Still runs very well.
If I could change the oil myself I would do it every 5k using the cheapest 507.00 spec oil I can find. But I can’t so I do it every 10k and use Mobil1 ESP.
As long as it states VW502 on the back, you should be fine.
I used to live in Chicago, and had cut over to Mobil1 0W40 based on feedback from a very respected resource who worked for Porsche. For context, his recommendation was grounded in enabling my engine to better handle the harsh Chicago winter temps.
To be frank, I'm not sure if it made a huge difference but then again I do not have a chemical or petroleum engineering degree.
I drove my VW to 200k miles without any issues.
Amsoil in everything I ever owned. My 2017 RAV4 hybrid is sitting on 350k miles and still running strong.
I run amsoil in the engine and primary and redline in the tranny. No issues, my glide runs better on the amsoil then when I the syn3 in it
You can also try changing your oil to M1 15w50 full synthetic that helped me with my cold start rattling issues and the engine seems to run smoother along with the vanos idle clacking noises going away.
Here I am just dumping in Amsoil 5W-50 SSO because all I care about is shear wear protection and something content with high temp operation. 20,000 miles and not even a single psi drop in compression the whole time, don't even premix.
Personally I use mobile 1 extended performance and change every 5k but I’m a bit of an oil critic
Yes, you can certainly use 506.01 in your TDI and it's used in many TDIs around the world. However, based upon some of the UOAs offered up, I'd suggest moving to 507.00. The 506.01 has shown relatively high wear metals.
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