AMSOIL Signature Series 5W-20 100% Synthetic Motor Oil946 ml Bottle

Product code : ALMQTC-EA

Read 7,182 reviews

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AMSOIL Signature Series 5W-20 100% Synthetic Motor Oil946 ml Bottle

Product code : ALMQTC-EA

Read 7,182 reviews

$21.89

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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 using the ASTM D6891 standard test.
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.
We offer easy returns for customers. If your product is unused and unopened, you may return it within 30 days for a full refund of the purchase price. View full AMSOIL Return Policy.
We accept Visa, Mastercard, American Express, Discover and PayPal, and provide secure checkout and encrypted payment processing.

Code	Package Size	Unit Of Measure	Product
ALMQTC (ALMQTC-EA)	946 ml Bottle	Each	AMSOIL Signature Series 5W-20 100% Synthetic Motor Oil
ALMQTC (ALMQTC-CA)	946 ml Bottle	Case of 12	AMSOIL Signature Series 5W-20 100% Synthetic Motor Oil
ALM1GC (ALM1GC-EA)	3.78 Liter Jug	Each	AMSOIL Signature Series 5W-20 100% Synthetic Motor Oil
ALM1GC (ALM1GC-CA)	3.78 Liter Jug	Case of 4	AMSOIL Signature Series 5W-20 100% Synthetic Motor Oil
ALM55 (ALM55-EA)	208 L Drum	Each	AMSOIL Signature Series 5W-20 100% Synthetic Motor Oil

About this item

Compare Motor Oil

	Signature Series	Extended-Life (XL)	High-Mileage	Hybrid	OE

Wear Protection
Engine Cleanliness
Service Interval
Extreme Temp Performance
Corrosion Protection
Oil-Consumption Control
Viscosity Control
Leak Protection
Severe-Service Protection

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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.

See the Product Data Bulletin for full details.

Data Bulletin

Data Bulletins (English)

Data Bulletins (Français)

Warranty

WARRANTY

SDS

SDS

SDS (French)
5 star rating
Based on 7,182 reviews

See all customer reviews

Sort by

5 star rating
Excellent Oil

By AL, a Verified Buyer from Bozeman, MT on October 18, 2026

Seems like very good oil. I have read several engineer evaluations of this oil, and all show very good results. I will be using this oil for the duration of my ownership of the vehicle.

Bottom Line

Yes, I would recommend this to a friend.

Was this review helpful?

5 star rating
Oil

By BRYAN, a Verified Buyer from Pennsylvania on October 18, 2026

Oil was fine, but the multiple containers seems a bit redundant.

Was this review helpful?

5 star rating
Hemi Loves It

By CHAD, a Verified Buyer from Lethbridge on October 17, 2026

Switched to this oil from Pennzoil and I won't ever run anything different. Great oil.

Bottom Line

Yes, I would recommend this to a friend.

Was this review helpful?

5 star rating
Best Engine oil Ever

By JOMEL, a Verified Buyer from NJ on October 17, 2026

I've been using Amsoil signature series for quite sometime. Nothing close to the quality and performance of Amsoil.

Was this review helpful?

5 star rating
SIGNATURE

By WILLIAM, a Verified Buyer from Oregon on October 17, 2026

I prefer the Signature 0w20 oil in my 2020 Honda Accord Hybrid and my son’s 2022 Honda Odyssey since both vehicles often take very short trips in the Autumn and Winter. I’m confident the engines are getting the best possible protection.

Bottom Line

Yes, I would recommend this to a friend.

Was this review helpful?

5 star rating
Great oil

By KEVIN, a Verified Buyer on October 16, 2026

Great oil for high mileage vehicles

Bottom Line

Yes, I would recommend this to a friend.

Was this review helpful?

5 star rating
Great oil

By KEVIN, a Verified Buyer on October 16, 2026

Superior oil for my high mileage truck

Bottom Line

Yes, I would recommend this to a friend.

Was this review helpful?

5 star rating
5W30 full synthetic motor oil

By KEVIN, a Verified Buyer from OH on October 15, 2026

Good reviews according to the internet for 5W30 full synthetic motor oil

Bottom Line

Yes, I would recommend this to a friend.

Was this review helpful?

5 star rating
Great oil

By LESLIE, a Verified Buyer from NV on October 14, 2026

I drive cross country in a cargo van this oil works great for long intervals between oil changes

Bottom Line

Yes, I would recommend this to a friend.

Was this review helpful?

5 star rating
Oil

By ANTHONY, a Verified Buyer from Colorado on October 14, 2026

Best oil in the buisness. All 8 of my vehicle run amsoil for the protection and peace of mind.

Bottom Line

Yes, I would recommend this to a friend.

Was this review helpful?

1(current)

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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 using the ASTM D6891 standard test.
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.
We offer easy returns for customers. If your product is unused and unopened, you may return it within 30 days for a full refund of the purchase price. View full AMSOIL Return Policy.
We accept Visa, Mastercard, American Express, Discover and PayPal, and provide secure checkout and encrypted payment processing.

Compare Motor Oil

	Signature Series	Extended-Life (XL)	High-Mileage	Hybrid	OE

Wear Protection
Engine Cleanliness
Service Interval
Extreme Temp Performance
Corrosion Protection
Oil-Consumption Control
Viscosity Control
Leak Protection
Severe-Service Protection

View Full Image

See the Product Data Bulletin for full details.

Data Bulletin

Data Bulletins (English)

Data Bulletins (Français)

Warranty

WARRANTY

SDS

SDS

SDS (French)
5 star rating
Based on 7,182 reviews

See all customer reviews

Sort by

5 star rating
Excellent Oil

By AL, a Verified Buyer from Bozeman, MT on October 18, 2026

Seems like very good oil. I have read several engineer evaluations of this oil, and all show very good results. I will be using this oil for the duration of my ownership of the vehicle.

Bottom Line

Yes, I would recommend this to a friend.

Was this review helpful?

5 star rating
Oil

By BRYAN, a Verified Buyer from Pennsylvania on October 18, 2026

Oil was fine, but the multiple containers seems a bit redundant.

Was this review helpful?

5 star rating
Hemi Loves It

By CHAD, a Verified Buyer from Lethbridge on October 17, 2026

Switched to this oil from Pennzoil and I won't ever run anything different. Great oil.

Bottom Line

Yes, I would recommend this to a friend.

Was this review helpful?

5 star rating
Best Engine oil Ever

By JOMEL, a Verified Buyer from NJ on October 17, 2026

I've been using Amsoil signature series for quite sometime. Nothing close to the quality and performance of Amsoil.

Was this review helpful?

5 star rating
SIGNATURE

By WILLIAM, a Verified Buyer from Oregon on October 17, 2026

I prefer the Signature 0w20 oil in my 2020 Honda Accord Hybrid and my son’s 2022 Honda Odyssey since both vehicles often take very short trips in the Autumn and Winter. I’m confident the engines are getting the best possible protection.

Bottom Line

Yes, I would recommend this to a friend.

Was this review helpful?

5 star rating
Great oil

By KEVIN, a Verified Buyer on October 16, 2026

Great oil for high mileage vehicles

Bottom Line

Yes, I would recommend this to a friend.

Was this review helpful?

5 star rating
Great oil

By KEVIN, a Verified Buyer on October 16, 2026

Superior oil for my high mileage truck

Bottom Line

Yes, I would recommend this to a friend.

Was this review helpful?

5 star rating
5W30 full synthetic motor oil

By KEVIN, a Verified Buyer from OH on October 15, 2026

Good reviews according to the internet for 5W30 full synthetic motor oil

Bottom Line

Yes, I would recommend this to a friend.

Was this review helpful?

5 star rating
Great oil

By LESLIE, a Verified Buyer from NV on October 14, 2026

I drive cross country in a cargo van this oil works great for long intervals between oil changes

Bottom Line

Yes, I would recommend this to a friend.

Was this review helpful?

5 star rating
Oil

By ANTHONY, a Verified Buyer from Colorado on October 14, 2026

Best oil in the buisness. All 8 of my vehicle run amsoil for the protection and peace of mind.

Bottom Line

Yes, I would recommend this to a friend.

Was this review helpful?

1(current)

2

3

4

5

Next