Engines running on Bio-blends containing Fatty Acid Methyl Esters (FAME), especially pure FAME (ex. 100% FAME) can experience decreased engine oil viscosity over time.Fuel oil contamination in engine lubricants is a known phenomenon, and most…<p><p>https://www.marinelink.com/news/vps-effect-fame-contamination-engine-oils-527191</p></p>