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Delo 400 LE SAE 15W-40 (API CJ-4) is a premium quality, heavy duty motor oil formulated to meet the requirements of post-2007 low emission engines equipped with advanced emission control technologies. Provides outstanding performance with ultra-low sulfur diesel and also with normal and low sulfur diesel fuels, Delo 400 LE is backward compatible and may be used in older, conventional engines and gasoline engines. Delo 400 LE is formulated with ISOSYN technology, which combines highly refined base oils and an optimal blend of the latest technology in dispersant, detergent, oxidation inhibition, anti-wear, corrosion inhibition, viscosity improver and deforming additives. Delo 400 LE with ISOSYN technology rivals synthetics in critical engine tests. Exceeds API specifications for 15W40: CH-4, CG-4, CF-4; CJ-4 for 15W40, 30 and 40: CF-2, CF, CD-2, CD, SJ, SH, SG.