Forest-based fast pyrolysis liquids constitute a potential low-sulphur fuel alternative for the marine sector. However, it is a challenge to meet the marine fuel quality demands set by current infrastructure, engines and fuels standards. The aim of this work has been to explore the potential for producing a new and more sustainable marine fuel quality. This new fuel quality is based on upgraded pyrolysis oil which is used as a fuel component in three-component blends. Low-water containing pine pyrolysis oil samples were formed by vacuum-assisted dewatering and in the next step three-component blends were prepared by mixing pyrolysis oil with bio-diesel and nbutanol. The results showed that less amount of butanol is required to form homogenous and storage stable blends when using dewatered pyrolysis oil as a blend component as compared to using crude pyrolysis oil. Dewatering also reduced the corrosiveness dramatically indicating that fuel blends based on dewatered pyrolysis oils are more compatible with marine engines than fuel blend based on crude pyrolysis oil.