Blue, 32 oz, all season diesel boost, fuel additive formulated specifically to improve cetane & clean harsh carboxylate engine deposits in all diesel applications, provides immediate cetane boost up to 6 numbers, effective on both traditional & metal carboxylate deposits created in hpcr systems, cleans & maintains injector cleanliness by preventing new deposits from forming, restores injector performance, lost hp, & fuel economy up to 8%, prevents formation of soot & sludge caused by thermal stresses, extends fuel filter, injector, lube oil, & fuel pump life, reduces exhaust emissions, thereby reducing egr manual regenerations, contains less than 15 ppm sulfur & burns ash free.