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Protect your investment in diesel power and confidently extend drain intervals with our top-grade synthetic diesel oil. AMSOIL Signature Series Max-Duty Synthetic Diesel Oil delivers 6X more wear protection,* giving your diesel the extra protection it deserves. Advanced synthetic technology provides excellent viscosity control and outstanding extreme-temperature performance, while minimizing oil consumption. The result: protection that’s boosted to the max.
Wear on rings and cylinder liners leads to increased oil consumption and loss of compression, resulting in reduced horsepower and fuel economy. Third-party testing shows Signature Series Max-Duty delivers 6X more wear protection than required by the Detroit Diesel DD13 Scuffing Test for Specification DFS 93K222, delivering extra protection so you can push your diesel with peace of mind.
Signature Series Max-Duty Diesel Oil provides up to 76 percent less oil consumption than required by the API CK-4 standard in the Caterpillar-1N oil consumption test.
Using top-tier synthetic base oils, Signature Series Max-Duty is naturally resistant to oxidation and the thickening effects of soot contamination. That, along with boosted detergent/dispersant additives, keeps soot particles suspended independently, helping prevent the formation of larger, wear-causing particles. Viscosity increase is minimized and soot-related wear is controlled. Lower volatility also helps Signature Series Max-Duty Diesel Oil retain its viscosity after high- temperature service for maximum engine protection and efficiency.
Signature Series Max-Duty Synthetic Diesel Oil resists thermal (heat) breakdown better than conventional and competing synthetic diesel oils. Unlike conventional oils, Signature Series contains no wax, staying fluid in sub-zero temperatures for easier starting, improved oil flow and reduced wear. Signature Series 0W-40 (DZF) has a broad viscosity range that offers 4X better cold-cranking ability than a 15W- 40 oil in the ASTM D5293 cold-cranking viscosity test, making it excellent for use in both hot-operating engines and cold-weather starting extremes.
Signature Series Max-Duty has a low rate of volatility (burn-off), reducing oil consumption during operation and passing less oil vapor into the combustion chamber. It provides up to 76 percent less oil consumption than required by the API CK-4 standard in the Caterpillar-1N oil consumption test.
AMSOIL Signature Series Max-Duty Synthetic Diesel Oil provides protection boosted to the max, delivering up to 60% better turbo cleanlinessJ and withstanding the extra demands you place on the turbo when pulling heavy loads or updating the tune for maximum horsepower.
Use in diesel engines and, where appropriate, gasoline engines requiring any of the following specifications:
5W-30 (DHD) API CK-4/SN, CJ-4, CI-4+, CF; API SN+; Volvo VDS4.5, VDS4, VDS3; Mack EOS-4.5, EO-O; Renault RLD-4, RLD-3; Cummins CES20086, CES20081; Caterpillar ECF-2, ECF-3, ECF-1-a; DDC 93K218, 93K215, 93K214; DFS 93K222; ACEA E9, E7; ACEA E6; MB 228.31; MB 228.51; MAN 3575; MAN 3677; MTU Type 2.1, II, I; MTU Type 3.1; JASO DH-2; Deutz DQC III-10LA; Scania LA-2; Chrysler MS 10902; Ford WSS-M2C214-B1; Deutz DQC IV-10LA
10W-30 (DTT) API CK-4/SN, CJ-4, CI-4+, CF; Volvo VDS4.5, VDS4, VDS3; Mack EOS-4.5, EO-O; Renault RLD-4, RLD-3; Cummins CES20086, CES20081; Caterpillar ECF-2, ECF-3, ECF-1-a; DDC 93K218, 93K215, 93K214; DFS 93K222; ACEA E9, E7; MB 228.31; MAN 3575; MTU Type 2.1, II, I; JASO DH-2; Deutz DQC III-10LA; Chrysler MS 10902; Ford WSS-M2C171-F1;
0W-40 (DZF) API CK-4/SN, CJ-4, CI-4+, CF; Volvo VDS4.5, VDS4, VDS3; Mack EOS-4.5, EO-O; Renault RLD-4, RLD-3; Cummins CES20086, CES20081; Caterpillar ECF-2, ECF-3, ECF-1-a; DDC 93K218, 93K215, 93K214; ACEA E9, E7; MAN 3575; MTU Type 2.1, II, I; JASO DH-2; Deutz DQC III-10LA; Chrysler MS 10902; Ford WSS-M2C171-F1;
5W-40 (DEO) API CK-4/SN, CJ-4, CI-4+, CF; API CF-2; Volvo VDS4.5, VDS4, VDS3; Mack EOS-4.5, EO-O; Renault RLD-4, RLD-3; Cummins CES20086, CES20081; Caterpillar ECF-2, ECF-3, ECF-1-a; DDC 93K218, 93K215, 93K214; DFS 93K222; ACEA E9, E7; MB 228.31; MAN 3575; MTU Type 2.1, II, I; JASO DH-2; Allison TES439; Deutz DQC III-10LA; Scania LA-2; Chrysler MS 10902; Ford WSS-M2C171-F1;
15W-40 (DME) API CK-4/SN, CJ-4, CI-4+, CF; API CF-2; Volvo VDS4.5, VDS4, VDS3; Mack EOS-4.5, EO-O; Renault RLD-4, RLD-3; Cummins CES20086, CES20081; Caterpillar ECF-2, ECF-3, ECF-1-a; DDC 93K218, 93K215, 93K214; DFS 93K222; ACEA E9, E7; MB 228.31; MAN 3575; MTU Type 2.1, II, I; JASO DH-2; Allison TES439; Deutz DQC III-10LA; Scania LA-2; Chrysler MS 10902; Ford WSS-M2C171-F1;
Signature Series Max-Duty Synthetic Diesel Oil is compatible with other conventional and synthetic engine oils. Mixing AMSOIL diesel oils with other oils, however, will shorten the oil’s life expectancy and reduce its performance benefits. AMSOIL does not support extended drain intervals where oils have been mixed.
AMSOIL does not support extended drain intervals where oils have been mixed. Aftermarket oil additives are not recommended for use with AMSOIL synthetic motor oils.
Heavy-Duty On-/Off-Road: Three times (3X) OEM1 recommendation, not to exceed 60,000 miles/600 hours or one year, whichever comes first.
Turbodiesel Pickup: Two times (2X) OEM1 recommendation, not to exceed 25,000 miles or one year, whichever comes first.Competition Service Life: Provides lasting protection for multiple events. Use oil analysis to determine appropriate drain intervals.
• AMSOIL Oil Filters stop smaller particles, flow more oil and last longer than regular ilters. For best performance, use AMSOIL Oil Filters.
AMSOIL Signature Series 100% Synthetic Motor Oil is Warranty Secure, keeping your factory warranty intact. AMSOIL Synthetic ATV/UTV Motor Oil is a high-performance replacement for vehicle manufacturer-branded products and is also backed by the AMSOIL Limited Warranty. For details, visit AMSOIL.com/warrantysecure.
In America, the federal Magnuson Moss Warranty Act protects your freedom to choose the brand of parts and lubricants you think is best without fear of voiding your factory warranty.
Like our products, the AMSOIL Limited Warranty is built with an extra measure of protection. While some other oil companies guarantee their products only until you reach a specified mileage, we don't place restrictions on our warranty coverage based on total vehicle miles.
We stand behind our products for as long as you use them!
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