what oil to use

I use Mobil 1 for the cold weather start up protection and superior high heat durability. My VW burned 1 qt every 2000 miles when I bought it used. I switched to Mobil 1 and after 2 oil changes, it only burns a quart every 6000 miles.

Go to Walmart. Mobil 1 in a 5 quart jug for $22

You can't beat it.