Whats up everyone?

I dont know how everyone else feels about the new ULSD, but Im losing milage, and fuel from the leaky return lines. I just about got home with an almost empty tank, drove about 30 miles with the reserve light on. I decided to try some heating oil in my tank, to see the difference in the fuels. What a difference! It no longer shakes the car at low idle, the car makes about 1/2 the noise and operates the way its supposed to with real diesel. I live in New York City, and idling drives me crazy, especially when the car is rattling. Anyone else do this. Only downfall seems that it smokes (black) a lil bit more than usual.

Matt