Diesel Engine Oil
AMSOIL Diesel Engine Oils are engineered to protect your engine and keep up with the high demands of heavy-duty diesel applications.
AMSOIL Diesel Engine Oils are engineered to protect your engine and keep up with the high demands of heavy-duty diesel applications.
Find the right AMSOIL Diesel Engine Oil for your vehicle
DZFQT-EA
AMSOIL Signature Series 0W-40 100% Synthetic Max-Duty Diesel Oil
5 reviews
Diesel Engine Oil
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DTTQT-EA
AMSOIL Signature Series 10W-30 100% Synthetic Max-Duty Diesel Oil
83 reviews
Diesel Engine Oil
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DMEQT-EA
AMSOIL Signature Series 15W-40 100% Synthetic Max-Duty Diesel Oil
1,078 reviews
Diesel Engine Oil
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DHDQT-EA
AMSOIL Signature Series 5W-30 100% Synthetic Max-Duty Diesel Oil
21 reviews
Diesel Engine Oil
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DEOQT-EA
AMSOIL Signature Series 5W-40 100% Synthetic Max-Duty Diesel Oil
1,078 reviews
Diesel Engine Oil
Buy NowFind AMSOIL Diesel Engine Oil for Your Vehicle
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AMSOIL Diesel Engine Oil FAQs
Is AMSOIL Signature Series Dexos approved?+
AMSOIL Signature Series motor oils meet and exceed industry standards like GM dexos1, Gen 2, Gen 3 and dexos R.
What is 20W-50 oil used for?+
20W-50 oil is a commonly used oil weight for many different applications, including V-Twin engines (like Harleys - where it can be used in all 3 sumps), it's great for high-mileage diesel and gasoline engines, also recommended in classic car engines with flat-tappet camshafts, excels in hydrostatic transmissions, and is also used in high-performance competition diesel engines.
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