Red Line's synthetic engine oils are designed to provide the highest protection, cleanliness and superior drain intervals with the lowest friction for your gasoline, diesel, motorcycle or marine engine. Red Line uses the most stable components available and formulate their products for wear protection and friction reduction across a wide range of engine operating conditions. Red Line's products are unique because they contain polyol ester base stocks the only lubricants that can withstand the tremendous heat of modern jet engines. These synthetics have a natural multi-grade property, which allows Red Line chemists to avoid bulking up oil with unnecessary additive packages.
5W30: Factory recommended oil for stock car in everyday driving conditions. Provides the quickest starts and fastest oil pressure rise. Thicker oil film at operating temperature than a petroleum 10W-40. Best choice for engines operated in extreme cold weather.