Hi and thank you for this forum! I just purchased my first diesel vehicle (2012 VW Jetta Sportwagen TDI) and I am so excited! I am looking for any helpful hints or tips on upkeep, operation, etc. I am a total novice and know very little about diesel engines. What I do know is I LOVE THE TORQUE AND MILEAGE! Not to mention the longevity! I do surveillance for a living and occasionally must sit with the car idling for hours at a time...I was told this is actually GOOD for a diesel engine. Is this true??? If so, BONUS! Thanks again for this great forum.