Engine oil Mobil or IDEMITSU

I use the Mobil 1 just like the sticker Porsche put on your car…

I've tried various combinations that include the mix of m1 5-40 with 5-50 but have now for many years kept it simpler w/ Mobil 1 5-50 every five thousand miles. It purrs as one would expect from a 195,000 mile 996 Turbo.

My Saab (2003 9-5 Arc Wagon 3.0 turbo) has a sticker that says Mobil 1

To be honest, the mobil 1 ESP 0w-20 is a fantastic oil and meets those specs and is at walmart for $8/qt

My oil report on 0w30 mobil1 esp looked good. I'll keep using it. Mix of track and daily duty.

Seeing good results, lower heating, smoother functioning with Mobil Super Moto 15W-50 Synthetic Technology Engine Oil.

I was riding in the Himalayas where low-gear, high-acceleration could not be avoided and decided to try this. Noticed better performance, lower heating and decisively moved away from RE's semi-synthetic.

I wouldn't limit yourself to VW brand oil only if another "approved" oil is cheaper. VW has a document listing which oils meet their spec. I use the MOBIL 1 Esp x2 (it's on the list) since the 5 quart bottles are usually cheap from Walmart.com.

I’ve ran mobil1 5w30 for a few years now with oem filter on my 1990

I've been running Mobil ESP 0w20 (VW508) since my 1st oil change at 3k miles (5 months into ownership), then another oil change at 7600 miles 10 months later. I've ran a few Auto-X events, a light educational track day (not pushing the car too much), and certainly am otherwise not shy with the throttle at all. I have also had 1k miles on my stage 1 tune since July.

If you run Mobil1, yes you will needs lots of extra oil... Mobil 1 doesn’t make the grade.