PN#10437 SKU#15757 A blend of high quality synthetic base stocks and an exclusive Lucas additive package designed for use across a wide temperature range. Lucas Synthetic SAE 5W-40 is blended with a high TBN additive package that ensures more protection and longer oil life than ordinary CJ-4 oils, plus more protection against filter blocking in 2007 and newer emission-controlled engines designed for ultra low sulfur diesel fuel. The perfect cold weather diesel lubricant; down to -40°C. Protects against dry starts. Size: 5 Gal.