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Premium 5W-40 and 15W-40 Synthetic Diesel Oil

AMSOIL's Synthetic Diesel Oils are highly recommend for model-year 2007 and newer diesels mandating API CJ-4 emission quality oil standards. The Premium 5W-40 and 15W-40 oils are also recommend for pre 2007 diesel engines.

These powerful AMSOIL products can help engines last longer, reducing the cost of ownership because:

the oil's excellent shear stable formulation stands up to heat, soot and acids
helps to prevent wear, corrosion and deposits
the oil's wide viscosity range gives excellent cold and heat protection
reduces down time costs by providing adequate protection to allow for oil change intervals up to 3 times OEM recommendations (50,000 miles, 600 hours or 1 year) whichever comes first
provides improved fuel economy
reduces emissions by reducing oil consumption

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Or click here for information about a Diesel Fleet Fuel Economy Study that shows a 6.54% increased fuel economy with use of AMSOIL drivetrain products.