I have acquired a 2001 Jetta with the naturally aspirated 2.0L engine. VW recommends a 502.00 oil which I believe is insane considering its relative state of tune. 115 HP out of a 2.0L with a timing BELT I've seen online that many people just run whatever 15w40 is on sale with good results. Here is how the car will be used. Start car in morning and immediately back out of garage. Drive to end of my street and get on the 75-80 mph interstate with an evil uphill on-ramp. Drive 37 miles at the said speed and get off the interstate. About 12 hours later, pull out of work, immediately get on interstate with an equally evil ramp and return home in same fashion. I guess the point I'm getting to is that my house and work site are now right off the interstates and I have no time to warm up prior to getting on the gas close to or at wide open throttle when I leave. I'm looking at GC and M1 0w40 right now, but neither can be bought in giant jugs at Chinamart for a reasonable price.