Advertisement Video Diesel Exhaust Smoke Colors ByGreg Jones on Dec 8, 2020 Close Video Watch Video Distraction Free Advertisement There’s three most-common colors for diesel exhaust smoke – black, white and blue. They all mean something different in regards to your diesel engine’s operation. Brought to you by AMSOILClick Here to Read MoreAdvertisement Advertisement In this article:AMSOIL, diesel, exhaust Video: Intellectual Horsepower – Ep. 4 Video: Air-Cooled Flat Six Twin Plug 3.4L Porsche Engine Video: Sleeving an Engine – Part 2 Video: Engine Oil & Racing Q&A w/ PennGrade1 and Leverich Racing Advertisement VIDEOS Watch Engine Builder's latest discussions and explanations. SHOP Shop the latest Engine Builder merchandise. SUBSCRIBE Stay up to date by signing up for the Engine Builder newsletter.