* For burner fuel, Concarbon provides an approximation of the tendency of the fuel to form deposits in vaporizing pot-type and sleeve-type burners.
* For diesel fuel, Concarbon correlates approximately with combustion chamber deposits, provided that alkyl nitrates are absent, or if present, that the test is performed on the base fuel without additive.
*For motor oil, Concarbon was once regarded as indicative of the amount of carbonaceous deposits the oil would form in the combustion chamber of an engine. This is now considered to be of doubtful significance due to the presence of additives in many oils.
* For gas oil, Concarbon provides a useful correlation in the manufacture of gas there from.
* For delayed cokers, the Concarbon of the feed correlates positively to the amount of coke that will be produced.
* For fluid catalytic cracking units, the Concarbon of the feed can be used to estimate the feed's coke-forming tendency.