Engine lubricant is a type of OIL used to reduce friction and wear between moving parts in an engine. It is typically made from petroleum-based oils, synthetic oils, or a combination of both. The two crossword solutions for the term engine lubricant are 'OIL' (3 letters) and 'MOTOROIL' (8 letters). Motoroil is a specific type of OIL used to lubricate engines, and is usually composed of a blend of base oils and additives.