possably it could be the vaulve guide seals thats a classic when stopped at lights slight smoke when pulling of again.or find a long steep hill let it go and bail out dont forget your work bag if on way home lol. no find a long steep hill if possable select third gear or try fourth let it go down on over run make sure the engine is hot over run means no throttle the engine will try suckking oil through guide seals but keep looking in the rear view or take some one with you when there really bad they can smoke like fook