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Diesel Engine Oil

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Signature Series Max-Duty Synthetic Diesel Oil 15W-40

Outstanding extreme-pressure protection
Delivers 6X more wear protection1
Maintains proper viscosity (thickness)
Minimizes oil consumption
Maximizes fuel efficiency
Excels in extreme temperatures

1Based on third-party testing in the Detroit Diesel DD13 Scuffing Test for specification DFS 93K222 using 5W-30 as worst-case representation

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$11.80
Retail Price (USD)
Preferred Price: $8.80
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Signature Series Max-Duty Synthetic Diesel Oil 5W-40

Outstanding extreme-pressure protection
Delivers 6X more wear protection1
Maintains proper viscosity (thickness)
Minimizes oil consumption
Maximizes fuel efficiency
Excels in extreme temperatures

1Based on third-party testing in the Detroit Diesel DD13 Scuffing Test for specification DFS 93K222 using 5W-30 as worst-case representation

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$12.00
Retail Price (USD)
Preferred Price: $8.95
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Signature Series Max-Duty Synthetic Diesel Oil 0W-40

• Delivers 4X better cold-temperature performance1
Provides long-lasting engine protection
Maintains proper viscosity (thickness)
Minimizes oil consumption
Maximizes fuel efficiency

1When compared to SAE 15W-40 oil in the ASTM D5293 Cold Cranking Viscosity test

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$12.05
Retail Price (USD)
Preferred Price: $9.00
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DZFQT-EA
$12.05
Retail Price (USD)
Preferred Price: $9.00
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Signature Series Max-Duty Synthetic Diesel Oil 5W-30

Outstanding extreme-pressure protection
Delivers 6X more wear protection1
Maintains proper viscosity (thickness)
Minimizes oil consumption
Maximizes fuel efficiency
Excels in extreme temperatures

1Based on third-party testing in the Detroit Diesel DD13 Scuffing Test for specification DFS 93K222 using 5W-30 as worst-case representation

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$12.50
Retail Price (USD)
Preferred Price: $9.30
Save: $3.20 Learn More
DHDQT-EA
$12.50
Retail Price (USD)
Preferred Price: $9.30
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Signature Series Max-Duty Synthetic Diesel Oil 10W-30

Outstanding extreme-pressure protection
Delivers 6X more wear protection1
Maintains proper viscosity (thickness)
Minimizes oil consumption
Maximizes fuel efficiency
Excels in extreme temperatures

1Based on third-party testing in the Detroit Diesel DD13 Scuffing Test for specification DFS 93K222 using 5W-30 as worst-case representation

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$45.60
Retail Price (USD)
Preferred Price: $34.00
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Heavy-Duty Synthetic Diesel Oil 15W-40

• Delivers 4X more wear protection1
Minimizes oil consumption
Excels in extreme temperatures
Helps keep trucks and equipment operating at peak performance
Offers outstanding value

1Based on third-party testing in the Detroit Diesel DD13 Scuffing Test for specification DFS 93K222 using 10W-30 as worst-case representation

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$8.30
Retail Price (USD)
Preferred Price: $5.90
Save: $2.40 Learn More
ADPQT-EA
$8.30
Retail Price (USD)
Preferred Price: $5.90
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Heavy-Duty Synthetic Diesel Oil 5W-40

• Delivers 4X more wear protection1
Minimizes oil consumption
Excels in extreme temperatures
Helps keep trucks and equipment operating at peak performance
Offers outstanding value

1Based on third-party testing in the Detroit Diesel DD13 Scuffing Test for specification DFS 93K222 using 10W-30 as worst-case representation

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$8.60
Retail Price (USD)
Preferred Price: $6.15
Save: $2.45 Learn More
ADOQT-EA
$8.60
Retail Price (USD)
Preferred Price: $6.15
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Package Size
Unit Of Measure
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Heavy-Duty Synthetic Diesel Oil 10W-30

• Delivers 4X more wear protection1
Minimizes oil consumption
Excels in extreme temperatures
Helps keep trucks and equipment operating at peak performance
Offers outstanding value

1Based on third-party testing in the Detroit Diesel DD13 Scuffing Test for specification DFS 93K222 using 10W-30 as worst-case representation

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$8.20
Retail Price (USD)
Preferred Price: $5.85
Save: $2.35 Learn More
ADNQT-EA
$8.20
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Preferred Price: $5.85
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DOMINATOR 20W-50 Competition Diesel Oil

The Confidence to Compete, The Protection To Win

AMSOIL DOMINATOR® 20W-50 Competition Diesel Oil is designed for professionals and enthusiasts who want a step up in diesel protection. It is specifically designed for high-horsepower diesel engines and delivers the benefits most important to diesel competitors, including robust durability, outstanding bearing protection and the ability to withstand the extreme pressures and temperatures common to diesel competition.
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$12.45
Retail Price (USD)
Preferred Price: $9.25
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DCOQT-EA
$12.45
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Preferred Price: $9.25
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SAE 15W-40 Heavy-Duty Diesel and Marine Oil

Engineered for pre-2007 diesel engines in on-road applications as well as all model year diesel engines in off-road applications. High 12 TBN controls acids from combustion blow-by and EGR. Additives control soot thickening, oxidation and wear. Extended drain capabilities reduce downtime and motor oil expenses.
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$11.45
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Preferred Price: $8.50
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Series 3000 5W-30 Synthetic Heavy Duty Diesel Oil

Recommended for applications specifying API CI-4+ and prior specifications
Extends drain intervals and maximizes fuel economy
Controls soot-thickening and wear
Reduces oil consumption and emissions
Excels in extreme temperatures
Try Signature Series Max-Duty 5W-30 for a serious upgrade

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$13.30
Retail Price (USD)
Preferred Price: $10.00
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