Blue42™ Enzyme Fuel Tank Cleaner and Fuel Purifier uses naturally occurring plant enzymes to loosen sludge and decaying biomass from all tank surfaces, including baffles and cribbing, allowing for a more thorough cleaning. Blue42 reduces harmful fuel contaminants that lower fuel lubricity and plug filters, including water in which it safely disperses during fuel movement, without forming harmful emulsions. Blue42 prevents fuel oxidation, and is also a powerful combustion catalyst which will improve starting and combustion, increase fuel economy, and remove harmful carbon deposits that can lead to premature engine wear or even failure of High Pressure Common Rail fuel injectors (Tier 4 engines).