Thanks guys, I just went out and gave it a little more throttle, and gave it an 8 count and the result was much better. I work outside most of the year, I guess 40 is warm to me, not so much for the BX. As it turns out my guess for 1/4 throttle was 1600 rpm at start. I'll do it this way consistently, and what is the additive? Be as specific as you can if you don't mind, i'm real new at this diesel thing.