on 2 occasions in the past week iv had a smoking problem. Iv just had a new sump as cracked the old one :S to low me thinks! so the oil is fresh. Used the synta sivler stuff 10/40 as recomended. the smoking occurs when iv floored it, then il slow down and be going down a hill in say 3rd, or 4th not gibing it any stick, then i dont really need to give it any stick or anything, and poof a big cloud of black smoke comes out. Iv read a few things on here but none came out with a fixed idea of what i can do to sort it. I think its black smoke not blue so i beleive its over fueling? how can i get