dwiesel, am I supposed to be insulted by the,"Doubt you'll get an answer" comment? If not, please let me know.
Anyway, unleaded regular gasoline was $4.25 a gallon and I lived almost 90 minutes away from Reno at the time, and my Subaru even though it got 30 MPG the fuel cost was killing me due to all the trips I needed to make to Reno every week. USLD was $4.75 at the time and buying a TDI cost less per mile than buying unleaded. The bonus was WVO was becoming popular and there was a guy out where I lived that had a Greasecar kit in his Jetta and we got together collecting and filtering WVO and I too got a Greasecar kit and had it installed. WVO ended up costing around $0.50 a gallon to filter and process so I thought I had the world by the tail...
My new friend had a Jetta so that was what I looked for, a TDI Jetta. Looking back I wish I would have purchased a Jetta wagon instead as they are cool.
Sorry for the long post. I went on the internet and searched all the info I could find about the ALH models (remember this was 8 years ago) and there were no issues with the 2000,2001, and 2003 models but the 2002 model had owners in a fury. They would be on their way somewhere and the engine would just quit running (especially when new) and had to have their dead cars towed to the stealer's to get their car fixed.