Hydrotreated base oil is the base oil which passes the established refinery process for remove about 90% of contaminants to meet the global trend of clean fuels for transportation. In hydrotreating process, the feed oil is mixed with hydrogen in the suitable temperature and pressure condition. The unsaturated feed oil will be converted to the saturated feed oil by the hydrogen reaction
Hydrotreated base oil provides more performance in term of cleanliness and stability. These properties lead to better oxidation resistance which result in longer engine oil life and more environmentally friendly.