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Signature Series Synthetic Motor Oil
SAVE UP TO 25%

$10 for a six-month membership
Save up to 25% on Every Order
Exclusive promotions and more
FREE SHIPPING

Order $100 or more in AMSOIL products at full retail prices and receive free ground shipping anywhere in the continental U.S.
AMSOIL Signature Series Synthetic Motor Oil is Engineered for enthusiasts seeking maximum protection and performance. Precision-formulated with cutting-edge technology and a longstanding devotion to making the world's best motor oil. The result: engine protection that blows the doors off the highest industry standards.

• 50% more cleaning power vs. AMSOIL OE Synthetic Motor Oil
• Ideal for turbos & direct injection
• Guaranteed protection for up to 25,000 miles or 1 year

Click on a Product Below to Shop Online
Signature Series 0W-20 Synthetic Motor Oil
Product Code: ASMQT-EA
Engineered for enthusiasts seeking maximum protection and performance. Precision-formulated with cutting-edge technology and a longstanding devotion to making the world's best motor oil. The result: engine protection that blows the doors off the highest industry standards.
Signature Series 5W-20 Synthetic Motor Oil
Product Code: ALMQT-EA
Engineered for enthusiasts seeking maximum protection and performance. Precision-formulated with cutting-edge technology and a longstanding devotion to making the world's best motor oil. The result: engine protection that blows the doors off the highest industry standards.
Signature Series 0W-30 Synthetic Motor Oil
Product Code: AZOQT-EA
Engineered for enthusiasts seeking maximum protection and performance. Precision-formulated with cutting-edge technology and a longstanding devotion to making the world's best motor oil. The result: engine protection that blows the doors off the highest industry standards.
Signature Series 5W-30 Synthetic Motor Oil
Product Code: ASLQT-EA
Engineered for enthusiasts seeking maximum protection and performance. Precision-formulated with cutting-edge technology and a longstanding devotion to making the world's best motor oil. The result: engine protection that blows the doors off the highest industry standards.
Signature Series 10W-30 Synthetic Motor Oil
Product Code: ATMQT-EA
Engineered for enthusiasts seeking maximum protection and performance. Precision-formulated with cutting-edge technology and a longstanding devotion to making the world's best motor oil. The result: engine protection that blows the doors off the highest industry standards.
Signature Series 0W-40 Synthetic Motor Oil
Product Code: AZFQT-EA
Engineered for enthusiasts seeking maximum protection and performance. Precision-formulated with cutting-edge technology and a longstanding devotion to making the world's best motor oil. The result: engine protection that blows the doors off the highest industry standards.
Signature Series 5W-50 Synthetic Motor Oil
Product Code: AMRQT-EA
Engineered for enthusiasts seeking maximum protection and performance. Precision-formulated with cutting-edge technology and a longstanding devotion to making the world's best motor oil. The result: engine protection that blows the doors off the highest industry standards.
SAVE UP TO 25%

$10 for a six-month membership
Save up to 25% on Every Order
Exclusive promotions and more
FREE SHIPPING

Order $100 or more in AMSOIL products at full retail prices and receive free ground shipping anywhere in the continental U.S.