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AMSOIL Signature Series 0W-16 100% Synthetic Motor Oil
Product code : AZSQT-EA
AMSOIL Signature Series 0W-16 100% Synthetic Motor Oil
Product code : AZSQT-EA
Current price:
$17.99
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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.
About this item
-
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.
Fights Engine Wear
- 75 percent more engine protection against horsepower loss and wear1 than required by the industry standard, extending the life of vital components like pistons and cams.
- Develops a strong fluid film that keeps metal surfaces separated.
- Robust anti-wear additives further reduce wear in metal-to-metal contact regions for maximum engine life.
1Based on independent testing of AMSOIL Signature Series 0W-20, in ASTM D6891 as required by the API SN specification.
Signature Series Improves Startup Protection
AMSOIL provides better cold cranking viscosity, helping improve wear protection for engine components at startup.PP
ASTM D5293 cold Crank (Lower = Better)
AMSOIL Signature Series(5W-30) Royal Purple High Performance (5W-30) Lucas (5W-30) Driven LS30 (5W-30) Red Line High Performance (5W-30) Royal Purple HPS (5W-30) Cranking Viscosity (㎫ —s) 3800 4500 5000 5750 6100 6100 PPBased on independent third-party testing in the industry-standard ASTM D5293 Cold Crank Simulator test as required by SAE J300.
*Trademark names and images 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.
Signature Series Fights Wear
75% more engine protection against horsepower loss and wear.A
Sequence IVA Engine Test - Lower Number = Less Wear
Industry Standard AMSOIL Signature Series 0W-20 Synthetic Motor Oil Average Cam Wear 90 20.28 ABased on independent testing of AMSOIL Signature Series 0W-20, in ASTM D6891 as required by the API SN specification.
Signature Series Delivers Powerful Protection
AMSOIL delivers powerful protection. How good is it? An independent lab compared AMSOIL synthetic motor oil head-to-head against a leading competitor in a 100,000-mile test.P AMSOIL provided far superior wear protection and kept bearings looking like new.
PTesting conducted in an independent lab using AMSOIL Signature Series 5W-30 Synthetic Motor Oil and a leading synthetic-blend 5W-30 motor oil in Ford F-150 trucks with 3.5L twin-turbo engines.
Signature Series Protects Against LSPI
AMSOIL Synthetic Motor Oils achieved 100% protection against LSPI.B
![Piston damage due to an LSPI event observed during the testing of a competitor's motor oil.]( "Piston damage due to an LSPI event observed during the testing of a competitor's motor oil.")
Example of piston damage due to an LSPI event observed during the testing of a competitor’s motor oil. The red arrows indicate sections of the ring land that have broken away from the piston.
BBased on zero LSPI events in five consecutive tests of AMSOIL Signature Series, XL and OE 5W-30 Motor Oil in the LSPI engine test required by the GM dexos1 Gen 2 specification.
Signature Series Resists Viscosity Increase
Signature Series is barely challenged by the industry-standard testing, demonstrating only a 0.1% viscosity increase. Even when the test length is doubled, AMSOIL delivered twice the viscosity control required by the standard.GG
Sequence IIIH Engine Test - Lower number = better viscosity control
Industry Standard AMSOIL 1X AMSOIL 2X Viscosity Increase % 100% 0.1% 49.6% GGBased on independent testing of AMSOIL Signature Series 5W-30 in the Sequence IIIH Engine Test (ASTM D8111), required by the ILSAC GF-6 and API SP specifications.
Signature Series Helps Keep Engines Cleaner
- Fortified with a heavy treatment of detergent additives, delivering 28% more acid-neutralizing power than Mobil 1* and helping engines stay cleaner, longer.LL
- 50% more detergentsD to help keep oil passages clean and promote oil circulation.
- Controls heat and minimizes performance-robbing deposits.
- Superior thermal durability that resists breakdown and keeps pistons clean.
- Provides 90% better protection against sludge.DD
![Oil pick-up tube screen showing it's virtually free of sludge.]( "Oil pick-up tube screen showing it's virtually free of sludge.")
The oil pick-up tube screen is virtually free of sludge.
LLBased upon independent testing of Mobil 1 Annual Protection Full Synthetic 5W-30 and AMSOIL Signature Series 5W-30 in ASTM D2896. Oils purchased July 2020.
Dvs. AMSOIL OE Motor Oil
DDBased on independent testing of AMSOIL Signature Series 5W-30 in the ASTM D6593 engine test for oil screen plugging as required by the API SN specification.
Signature Series Guards Turbos
Protects turbochargers 72% better than requiredC by the GM dexos1* Gen 2 specification.
![Part from turbocharger.]( "Part from turbocharger.")
CBased on independent testing of AMSOIL Signature Series 5W-30 in the GM turbo coking test.
Keeps Pistons Cleaner
Even after doubling the length of the industry-standard test, AMSOIL delivered 40% cleaner pistons than required by the standard.FF
![Piston 40% cleaner from using AMSOIL.]( "Piston 40% cleaner from using AMSOIL.")
FFBased on independent testing of AMSOIL Signature Series 5W-30 in the Sequence IIIH Engine Test (ASTM D8111), required by the ILSAC GF-6 and API SP specifications.
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star rating
New oil, but...By KW, a Verified Buyer from SC on July 05, 2026Obviously, I'm a bit disappointed that there is a filter shortage these days. Since we are only changing once per year, hopefully production will be in place for the next go around. Remember, AMS means aerospace material specification!!!Bottom LineYes, I would recommend this to a friend.Was this review helpful?
-
star rating
The BestBy ALFRED, a Verified Buyer from Plano, TX on July 05, 2026I switched to the signature series, now that I am getting my vehicle tuned, and going to be demanding alot more from it. Hope it treats my motor just as good, and the regular version of Amsoil I was using before the tune.Bottom LineYes, I would recommend this to a friend.Was this review helpful?
-
star rating
Go toBy RYAN, a Verified Buyer on July 05, 2026Have used Amsoil since 2009 for all vehicle fluid and could not be happier. 100% synthetic has yet to disappoint. Even if I forget to change an go a few thousand miles over a normal change.Bottom LineYes, I would recommend this to a friend.Was this review helpful?
-
star rating
The BestBy TIMOTHY, a Verified Buyer on July 05, 2026Excellent motor oil …Bottom LineYes, I would recommend this to a friend.Was this review helpful?
-
star rating
The best in the business!By RW, a Verified Buyer from Marietta, GA on July 05, 2026Oil sample sent to Blackstone Laboratories to test for oil viscosity and engine wear. Part of the report said, "In short, your engine is wearing exceptionally well..." I'm very pleased and Will continue to use and recommend this productWas this review helpful?
-
star rating
The Best You Can BuyBy TIM, a Verified Buyer on July 05, 2026Fast shipping. Acura MDX. Peace of mind on blistering hot days.Bottom LineYes, I would recommend this to a friend.Was this review helpful?
-
star rating
5w-30By Chip, a Verified Buyer from Oregon on July 05, 2026I’ve been using this oil for my gas cars now for several years and it works really well with high mileage cars and SUVs. I noticed smother idles and lower temps with Amsoil products.Bottom LineYes, I would recommend this to a friend.Was this review helpful?
-
star rating
Great product!By ROBERT, a Verified Buyer from Manitoba Canada on July 04, 2026Highly recommended oil. I run this in my 2018 Nissan Titan and my 2013 Victory Cross Country tour. No issues Any future oil changes will be Amsoil .Bottom LineYes, I would recommend this to a friend.Was this review helpful?
-
star rating
HistoryBy RUDY, a Verified Buyer from Seminole, FL on July 03, 2026I started using AMSOIL when the original name was Amzoil (after Albert Amatuzio)). Synthetics were a bit of a novelty back then. Since then, I’ve had vehicles that I’ve sold with over 300,000 miles on the odometer. They all used very little oil, eventually, and maintained above average fuel economy. The best of the best and well worth paying a bit more for. The long term cost has been significantly lower. AMSOIL passes the test of time.Bottom LineYes, I would recommend this to a friend.Was this review helpful?
-
star rating
Oil ChangeBy DAREN, a Verified Buyer from Michigan on July 03, 2026You didn't have the oil filter I needed, again. Had to buy from a local parts store.Bottom LineYes, I would recommend this to a friend.Was this review helpful?
-
star rating
Compare Motor Oil
Data Bulletin-
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.
-
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.
Fights Engine Wear
- 75 percent more engine protection against horsepower loss and wear1 than required by the industry standard, extending the life of vital components like pistons and cams.
- Develops a strong fluid film that keeps metal surfaces separated.
- Robust anti-wear additives further reduce wear in metal-to-metal contact regions for maximum engine life.
1Based on independent testing of AMSOIL Signature Series 0W-20, in ASTM D6891 as required by the API SN specification.
Signature Series Improves Startup Protection
AMSOIL provides better cold cranking viscosity, helping improve wear protection for engine components at startup.PP
ASTM D5293 cold Crank (Lower = Better)
AMSOIL Signature Series(5W-30) Royal Purple High Performance (5W-30) Lucas (5W-30) Driven LS30 (5W-30) Red Line High Performance (5W-30) Royal Purple HPS (5W-30) Cranking Viscosity (㎫ —s) 3800 4500 5000 5750 6100 6100 PPBased on independent third-party testing in the industry-standard ASTM D5293 Cold Crank Simulator test as required by SAE J300.
*Trademark names and images 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.
Signature Series Fights Wear
75% more engine protection against horsepower loss and wear.A
Sequence IVA Engine Test - Lower Number = Less Wear
Industry Standard AMSOIL Signature Series 0W-20 Synthetic Motor Oil Average Cam Wear 90 20.28 ABased on independent testing of AMSOIL Signature Series 0W-20, in ASTM D6891 as required by the API SN specification.
Signature Series Delivers Powerful Protection
AMSOIL delivers powerful protection. How good is it? An independent lab compared AMSOIL synthetic motor oil head-to-head against a leading competitor in a 100,000-mile test.P AMSOIL provided far superior wear protection and kept bearings looking like new.
PTesting conducted in an independent lab using AMSOIL Signature Series 5W-30 Synthetic Motor Oil and a leading synthetic-blend 5W-30 motor oil in Ford F-150 trucks with 3.5L twin-turbo engines.
Signature Series Protects Against LSPI
AMSOIL Synthetic Motor Oils achieved 100% protection against LSPI.B
![Piston damage due to an LSPI event observed during the testing of a competitor's motor oil.]( "Piston damage due to an LSPI event observed during the testing of a competitor's motor oil.")
Example of piston damage due to an LSPI event observed during the testing of a competitor’s motor oil. The red arrows indicate sections of the ring land that have broken away from the piston.
BBased on zero LSPI events in five consecutive tests of AMSOIL Signature Series, XL and OE 5W-30 Motor Oil in the LSPI engine test required by the GM dexos1 Gen 2 specification.
Signature Series Resists Viscosity Increase
Signature Series is barely challenged by the industry-standard testing, demonstrating only a 0.1% viscosity increase. Even when the test length is doubled, AMSOIL delivered twice the viscosity control required by the standard.GG
Sequence IIIH Engine Test - Lower number = better viscosity control
Industry Standard AMSOIL 1X AMSOIL 2X Viscosity Increase % 100% 0.1% 49.6% GGBased on independent testing of AMSOIL Signature Series 5W-30 in the Sequence IIIH Engine Test (ASTM D8111), required by the ILSAC GF-6 and API SP specifications.
Signature Series Helps Keep Engines Cleaner
- Fortified with a heavy treatment of detergent additives, delivering 28% more acid-neutralizing power than Mobil 1* and helping engines stay cleaner, longer.LL
- 50% more detergentsD to help keep oil passages clean and promote oil circulation.
- Controls heat and minimizes performance-robbing deposits.
- Superior thermal durability that resists breakdown and keeps pistons clean.
- Provides 90% better protection against sludge.DD
![Oil pick-up tube screen showing it's virtually free of sludge.]( "Oil pick-up tube screen showing it's virtually free of sludge.")
The oil pick-up tube screen is virtually free of sludge.
LLBased upon independent testing of Mobil 1 Annual Protection Full Synthetic 5W-30 and AMSOIL Signature Series 5W-30 in ASTM D2896. Oils purchased July 2020.
Dvs. AMSOIL OE Motor Oil
DDBased on independent testing of AMSOIL Signature Series 5W-30 in the ASTM D6593 engine test for oil screen plugging as required by the API SN specification.
Signature Series Guards Turbos
Protects turbochargers 72% better than requiredC by the GM dexos1* Gen 2 specification.
![Part from turbocharger.]( "Part from turbocharger.")
CBased on independent testing of AMSOIL Signature Series 5W-30 in the GM turbo coking test.
Keeps Pistons Cleaner
Even after doubling the length of the industry-standard test, AMSOIL delivered 40% cleaner pistons than required by the standard.FF
![Piston 40% cleaner from using AMSOIL.]( "Piston 40% cleaner from using AMSOIL.")
FFBased on independent testing of AMSOIL Signature Series 5W-30 in the Sequence IIIH Engine Test (ASTM D8111), required by the ILSAC GF-6 and API SP specifications.
-
-
-
star rating
New oil, but...By KW, a Verified Buyer from SC on July 05, 2026Obviously, I'm a bit disappointed that there is a filter shortage these days. Since we are only changing once per year, hopefully production will be in place for the next go around. Remember, AMS means aerospace material specification!!!Bottom LineYes, I would recommend this to a friend.Was this review helpful?
-
star rating
The BestBy ALFRED, a Verified Buyer from Plano, TX on July 05, 2026I switched to the signature series, now that I am getting my vehicle tuned, and going to be demanding alot more from it. Hope it treats my motor just as good, and the regular version of Amsoil I was using before the tune.Bottom LineYes, I would recommend this to a friend.Was this review helpful?
-
star rating
Go toBy RYAN, a Verified Buyer on July 05, 2026Have used Amsoil since 2009 for all vehicle fluid and could not be happier. 100% synthetic has yet to disappoint. Even if I forget to change an go a few thousand miles over a normal change.Bottom LineYes, I would recommend this to a friend.Was this review helpful?
-
star rating
The BestBy TIMOTHY, a Verified Buyer on July 05, 2026Excellent motor oil …Bottom LineYes, I would recommend this to a friend.Was this review helpful?
-
star rating
The best in the business!By RW, a Verified Buyer from Marietta, GA on July 05, 2026Oil sample sent to Blackstone Laboratories to test for oil viscosity and engine wear. Part of the report said, "In short, your engine is wearing exceptionally well..." I'm very pleased and Will continue to use and recommend this productWas this review helpful?
-
star rating
The Best You Can BuyBy TIM, a Verified Buyer on July 05, 2026Fast shipping. Acura MDX. Peace of mind on blistering hot days.Bottom LineYes, I would recommend this to a friend.Was this review helpful?
-
star rating
5w-30By Chip, a Verified Buyer from Oregon on July 05, 2026I’ve been using this oil for my gas cars now for several years and it works really well with high mileage cars and SUVs. I noticed smother idles and lower temps with Amsoil products.Bottom LineYes, I would recommend this to a friend.Was this review helpful?
-
star rating
Great product!By ROBERT, a Verified Buyer from Manitoba Canada on July 04, 2026Highly recommended oil. I run this in my 2018 Nissan Titan and my 2013 Victory Cross Country tour. No issues Any future oil changes will be Amsoil .Bottom LineYes, I would recommend this to a friend.Was this review helpful?
-
star rating
HistoryBy RUDY, a Verified Buyer from Seminole, FL on July 03, 2026I started using AMSOIL when the original name was Amzoil (after Albert Amatuzio)). Synthetics were a bit of a novelty back then. Since then, I’ve had vehicles that I’ve sold with over 300,000 miles on the odometer. They all used very little oil, eventually, and maintained above average fuel economy. The best of the best and well worth paying a bit more for. The long term cost has been significantly lower. AMSOIL passes the test of time.Bottom LineYes, I would recommend this to a friend.Was this review helpful?
-
star rating
Oil ChangeBy DAREN, a Verified Buyer from Michigan on July 03, 2026You didn't have the oil filter I needed, again. Had to buy from a local parts store.Bottom LineYes, I would recommend this to a friend.Was this review helpful?
-
star rating
