It is used as a diesel cetane improver. By-products include molassed sugar beet feed for cattle and LimeX70, a soil improver. Hyman swam at AFOX under head coach and swim improver Bob Gillett. It was used by the improver gardeners and disabled ex-servicemen who worked on the estate. He was influential too on the American improver John Beale Bordley. It was also suggested to be a general pain reliever and health improver. Henry lives for the present moment, only interested in playing the role of improver. At Sotherton, Henry acts out the part of landscape improver. Afterwards he worked for five years as an "improver" with George Gilbert Scott in London. Refiners also use Cetane Improver additives in their Premium Diesel fuel for enhanced performances.