AMSOIL Diesel 4-IN-1

AMSOIL Diesel 4-IN-1 combines the superior detergency and improved lubricity of AMSOIL Diesel Injector Clean, the excellent cold-flow and anti-gelling properties of AMSOIL Diesel Cold Flow and the increased horsepower and cetane of AMSOIL Cetane Boost in one convenient package, providing the full potency and benefits of all three products.

It is safe for use in all diesel fuels, including biodiesel. Diesel 4-IN-1 is specially engineered to provide exceptional all-season protection for a serious performance boost. One dose delivers outstanding detergency, improved lubricity, better cold flow and higher cetane.

Restores Horsepower & Improves Fuel Economy. Fuel injector deposits interrupt spray patterns, causing poor fuel atomization, incomplete combustion, excessive emissions and smoke. In high-pressure common-rail systems, injection pressures can be 30,000 psi and higher, and injector clearances are as tight as 1-3 microns (a human hair is typically 70-100 microns thick). Even minimal internal diesel injector deposits can lead to sticking and seizure. Diesel 4-IN-1 features advanced chemistry that targets internal diesel injector deposits and traditional carbonaceous deposits, helping restore horsepower and operability to like-new condition.

Lubricates Pumps & Injectors. Ultra-low-sulfur diesel fuel (ULSD) provides significantly reduced lubricity. Diesel 4-IN-1 adds the lubricity the fuel pump and injectors need, reducing wear and improving service life.

Improves Fuel Quality. By increasing cetane up to 4 points (maintenance dose), Diesel 4-IN-1 improves the ignition quality of diesel fuel, maximizing available power and improving starting. It also smooths idle and reduces smoke and emissions.

Helps Prevent Gelling. Diesel 4-IN-1 lowers the cold filter-plugging point (CFPP) by up to 40°F (22°C) in ULSD.

Extends Filter Life. Diesel 4-IN-1 effectively protects against carbonaceous deposits that collect in the fuel filter, extending fuel filter life.

Use AMSOIL Diesel 4-IN-1 in all types of heavy- and light-duty, on- or off-road and marine diesel engines. Add before filling tank. Diesel 4-IN-1 must be added at temperatures above the diesel fuel cloud point (the temperature at which wax begins to crystallize). It will not reverse gel or wax crystals once formed.

Maintenance dose (up to 4-point cetane increase):

• 2 oz (59.1 mL) treats 5 gal (18.9 L)
• 4 oz (118.3 mL) treats 10 gal (37.9 L)
• 8 oz (236.6 mL) treats 20 gal (75.7 L)
• 12 oz (354.9 mL) treats 30 gal (113.6 L)
• 16 oz (473.2 mL) treats 40 gal (151.4 L)
• 64 oz (1.9 L) treats 160 gal (605.7 L)