Lucas Petroleum Motor Oils are formulated with the highest quality paraffinic base stocks and an exclusive high performance additive system, including lubricity and anti-seize agents. They come in many SAE grades and meet or exceed current API specifications. These motor oils have excellent cold temperature properties and are compatible with both conventional and synthetic engine oils. Product Features:SAE grades meet or exceed current API specificationsExcellent cold temperature propertiesCompatible with both conventional and synthetic engine oilsExclusive high performance additive system