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

Product Code: DMEQTC-EA

4.9

(997 reviews)

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

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

$17.99

Retail Price (CAD)

Preferred Price: $14.79
Save: $3.20 Learn More

Product Code: DMEQTC-EA

(997 reviews)

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$17.99

Retail Price (CAD)

Preferred Price: $14.79
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Signature Series Max-Duty Synthetic Diesel Oil 5W-40

Product Code: DEOQTC-EA

4.9

(997 reviews)

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

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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Signature Series Max-Duty Synthetic Diesel Oil 5W-40

$17.99

Retail Price (CAD)

Preferred Price: $14.79
Save: $3.20 Learn More

Product Code: DEOQTC-EA

(997 reviews)

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$17.99

Retail Price (CAD)

Preferred Price: $14.79
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Signature Series Max-Duty Synthetic Diesel Oil 0W-40

Product Code: DZFQT-EA

(3 reviews)

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

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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Signature Series Max-Duty Synthetic Diesel Oil 0W-40

$17.99

Retail Price (CAD)

Preferred Price: $14.79
Save: $3.20 Learn More

Product Code: DZFQT-EA

(3 reviews)

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$17.99

Retail Price (CAD)

Preferred Price: $14.79
Save: $3.20 Learn More

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Signature Series Max-Duty Synthetic Diesel Oil 5W-30

Product Code: DHDQTC-EA

4.9

(19 reviews)

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

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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Signature Series Max-Duty Synthetic Diesel Oil 5W-30

$17.99

Retail Price (CAD)

Preferred Price: $14.79
Save: $3.20 Learn More

Product Code: DHDQTC-EA

(19 reviews)

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$17.99

Retail Price (CAD)

Preferred Price: $14.79
Save: $3.20 Learn More

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Signature Series Max-Duty Synthetic Diesel Oil 10W-30

Product Code: DTT1GC-EA

(68 reviews)

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

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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Signature Series Max-Duty Synthetic Diesel Oil 10W-30

$70.39

Retail Price (CAD)

Preferred Price: $57.69
Save: $12.70 Learn More

Product Code: DTT1GC-EA

(68 reviews)

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$70.39

Retail Price (CAD)

Preferred Price: $57.69
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Heavy-Duty Synthetic Diesel Oil 15W-40

Product Code: ADPQTC-EA

(139 reviews)

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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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Heavy-Duty Synthetic Diesel Oil 15W-40

$12.09

Retail Price (CAD)

Preferred Price: $9.89
Save: $2.20 Learn More

Product Code: ADPQTC-EA

(139 reviews)

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$12.09

Retail Price (CAD)

Preferred Price: $9.89
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Heavy-Duty Synthetic Diesel Oil 5W-40

Product Code: ADOQTC-EA

4.9

(75 reviews)

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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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Heavy-Duty Synthetic Diesel Oil 5W-40

$12.09

Retail Price (CAD)

Preferred Price: $9.89
Save: $2.20 Learn More

Product Code: ADOQTC-EA

(75 reviews)

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$12.09

Retail Price (CAD)

Preferred Price: $9.89
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Heavy-Duty Synthetic Diesel Oil 10W-30

Product Code: ADNQTC-EA

4.9

(27 reviews)

See all customer reviews

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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Heavy-Duty Synthetic Diesel Oil 10W-30

$12.09

Retail Price (CAD)

Preferred Price: $9.89
Save: $2.20 Learn More

Product Code: ADNQTC-EA

(27 reviews)

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$12.09

Retail Price (CAD)

Preferred Price: $9.89
Save: $2.20 Learn More

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15W-40 Commercial Grade Diesel Oil

Product Code: SBDFTP-EA

Advanced synthetic-blend diesel oil with greater than 50% synthetic content. Meets or exceeds original equipment manufacturer requirements in both on- and off-road applications.

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15W-40 Commercial Grade Diesel Oil

$97.25

Retail Price (CAD)

Preferred Price: $80.55
Save: $16.70 Learn More

Product Code: SBDFTP-EA

$97.25

Retail Price (CAD)

Preferred Price: $80.55
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SAE 15W-40 Heavy-Duty Diesel and Marine Oil

Product Code: AMEQTC-EA

4.9

(249 reviews)

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Recommended for applications specifying API CI-4+ and prior specifications
Controls soot and wear
Reduces oil consumption and emissions
Delivers maximum engine protection over extended drain intervals
Provides outstanding protection and performance in temperature extremes
Try Signature Series Max-Duty 15W-40 for a serious upgrade

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SAE 15W-40 Heavy-Duty Diesel and Marine Oil

$18.89

Retail Price (CAD)

Preferred Price: $15.49
Save: $3.40 Learn More

Product Code: AMEQTC-EA

(249 reviews)

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$18.89

Retail Price (CAD)

Preferred Price: $15.49
Save: $3.40 Learn More

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DOMINATOR 20W-50 Competition Diesel Oil

Product Code: DCO (Select Size)

The Confidence to Compete, The Protection To Win

(6 reviews)

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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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DOMINATOR 20W-50 Competition Diesel Oil

$81.09

Retail Price (CAD)

Preferred Price: $
Save: $ Learn More

Product Code: DCO (Select Size)

(6 reviews)

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$81.09

Retail Price (CAD)

Preferred Price: $
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Series 3000 5W-30 Synthetic Heavy Duty Diesel Oil

Product Code: HDD (Select Size)

4.9

(249 reviews)

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Available While Supplies Last
AMSOIL Series 3000 5W-30 Synthetic Diesel Oil is discontinued and available while supplies last. For a serious upgrade, try Signature Series Max-Duty 5W-30.