I have been interested in VW diesels for some time but haven't had the money to purchase one.

What is the difference between a TDI and other VW diesel engines?

From my understanding the gas milage is better, but the initial cost to purchase the vehicle is higher. Is this true?

How does the maintainance on a diesel compare to a gasoline engine? Are they more expensive or different to work on?

I have done most of the work on my older cars, but these were all gasoline engines. I have replaced parts like starters, alternators, fuel pumps even a transmission or two. I am wondering if diesels have any different considerations.

Also, how many miles can you generally get on a diesel if driven respectively. Not that I drive resepctively. Hehe!!

Are there any models or specific 4 cylinder diesel engines you suggest?

Cheers--Dan