Red Lines 15W40 Diesel Motor Oil is highly resistant to thermal breakdown and provides double the detergent and acid-neutralizing ability of conventional petroleum diesel engine oils for maximum engine cleanliness. It is Ideal for diesels that run high oil temperature, such as those operated in hot weather or those in light truck applications where heavy loads are carried or towed. It is also the best choice in medium and heavy-duty diesel truck engines when maximum durability is required, and when used at extended drain intervals, it is an excellent value for long-haul, fleet use. Red Line synthetic motor 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 Lines products are unique because they contain polyolester base stocks which can withstand the tremendous heat of modern jet engines. These synthetics have a natural multi-grade property which allows Red Li