Do I need to modify any service intervals when switching from petrodiesel to B20?
• Due to the solvent nature of B20, and the potential for ‘cleaning’ of the vehicle fuel tank and lines, new fuel filters must be installed when switching to B20 on used engines. Fuel filters will need to be replaced at half the standard interval for the next two fuel filter changes. After this initial period, you may revert to the intervals specified in your O & M manual. For EPA 2007 on-highway midrange engines only, oil sampling will be necessary for the first 6 months of operation with B20 to monitor fuel dilution of the lubricating oil. For high horsepower engines equipped with the Eliminator™ oil filter option, oil sampling will be needed to determine the appropriate oil change interval. Oil samples should be taken every 250 hours of operation and analyzed according to the Cummins Engine Oil Recommendations Bulletin 3810340 which can be found on quickserve.cummins.com or through local distributors and certified dealers. This process should be repeated for at least three oil chang
