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10W-30 Gasoline Motor Oil

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Signature Series 10W-30 Synthetic Motor Oil

Signature Series 10W-30 Synthetic Motor Oil


A New Level of Motor Oil Technology

  • 75% more engine protection against horsepower loss and wear.1
  • 50% more cleaning power vs. AMSOIL OE Motor Oil
  • Protects turbochargers 72% better than required2 by the GM dexos1 Gen 2 specification.
  • 28% more acid-neutralizing power than Mobil 1.3
  • Trusted by professional engine builders
  • Guaranteed protection for up to 25,000 miles or 1 year

1Based on independent testing of AMSOIL Signature Series 0W-20, in ASTM D6891 as required by the API SN specification.
2Based on independent testing of AMSOIL Signature Series 5W-30 in the GM turbo coking test.
3Based upon independent testing of Mobil 1 Annual Protection Full Synthetic 5W-30 and AMSOIL Signature Series 5W-30 in ASTM D2896. Oils purchased in July 2020.

View Detail Page Warning - Click here for Proposition 65 information for this product

$16.29

Retail Price (USD)
Preferred Price: $12.49
Save: $3.80 Learn More
XL 10W-30 Synthetic Motor Oil

XL 10W-30 Synthetic Motor Oil


  • 64% more protection against oil breakdown1 than required by the GM dexos1® Gen 2 specification, ensuring protection in extreme temperatures.
  • 100% protection against LSPI2—zero occurrences were recorded throughout five consecutive tests.
  • 25% more cleaning power3 to help keep your engine running smoother, longer.
  • Provides extended drain intervals up to 12,000 miles or one year.4
  • Excels in fuel-economy testing, earning the additional "Resource Conserving" designation5 from the API.

1Based on independent testing of AMSOIL XL 5W-30 motor oil in the GMOD engine test required for the GM dexos1 Gen2 specification.
2Based on zero LSPI events in five consecutive tests of AMSOIL XL 5W-30 Motor Oil in the LSPI engine test required by the GM dexos1 Gen 2 specification.
3vs. AMSOIL OE Motor Oil
4See reverse side for details.
5Applicable to XL 0W-20, 5W-20, 5W-30 and 10W-30 motor oil.
*All trademarked names are the property of their respective owners and may be registered marks in some countries. No affiliation or endorsement claim, express or implied, is made by their use.

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$13.09

Retail Price (USD)
Preferred Price: $9.89
Save: $3.20 Learn More
XLTQT-EA

$13.09

Retail Price (USD)
Preferred Price: $9.89
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OE 10W-30 Synthetic Motor Oil

OE 10W-30 Synthetic Motor Oil


  • Fights sludge and deposits with 100% synthetic formulation.
  • 47% more wear protection1 than required by the GM dexos1 Gen 2 specification.
  • 100% protection against LSPI2 in the engine test required by the GM dexos1 Gen 2 specification.

1Based on independent testing of OE 0W-20 in the Peugeot TU3M Wear Test as required by the dexos1 Gen 2 specification.
2Based on zero LSPI events in five consecutive tests of AMSOIL OE 5W-30 Motor Oil in the LSPI engine test required by the GM dexos1 Gen 2 specification.

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$9.99

Retail Price (USD)
Preferred Price: $7.49
Save: $2.50 Learn More
OETQT-EA

$9.99

Retail Price (USD)
Preferred Price: $7.49
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Z-ROD® 10W-30 Synthetic Motor Oil

Z-ROD® 10W-30 Synthetic Motor Oil


Engineered for classic vehicles
Helps retain horsepower
High-zinc formula protects flat-tappet cams, lifters, rockers & other critical components
Protects against rust during storage

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$15.19

Retail Price (USD)
Preferred Price: $11.59
Save: $3.60 Learn More
ZRTQT-EA

$15.19

Retail Price (USD)
Preferred Price: $11.59
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DOMINATOR® 10W-30 Racing Oil

DOMINATOR® 10W-30 Racing Oil


Formulated specifically for racing & high-performance engines
Robust formulation resists viscosity loss
Proprietary friction modifier maximizes horsepower & torque
Fortified with anti-wear additives for extra protection

View Detail Page Warning - Click here for Proposition 65 information for this product

$17.89

Retail Price (USD)
Preferred Price: $13.79
Save: $4.10 Learn More
RD30QT-EA

$17.89

Retail Price (USD)
Preferred Price: $13.79
Save: $4.10 Learn More
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Free AMSOIL Hat on orders that include Three Bottles of Interceptor 2-Stroke Oil or 2-Stroke Injector Oil