AMSOIL Extended-Life 10W-40 100% Synthetic Motor Oil

AMSOIL Extended-Life 10W-40 Synthetic Motor Oil is designed for those who demand extended service life from their oil, offering up to 20,000 miles or one year between oil changes. This oil is a blend of advanced synthetic base oils and an enhanced additive package, promoting engine cleanliness and longevity. It maintains its viscosity under extreme conditions, helping to reduce excessive oil consumption and engine deposits. This oil is particularly effective in protecting against low-speed pre-ignition (LSPI), a challenge in modern gasoline direct injection (GDI) and turbocharged engines. The oil’s fortified additive package neutralizes harmful engine acids and resists sludge, corrosion, and carbon deposits, keeping engines clean and efficient. AMSOIL Extended-Life 10W-40 is suitable for applications requiring API SP, SN Plus, SN, ACEA A3/B3, A3/B4 standards, and is compatible with conventional and other synthetic motor oils.

5.0
star rating from
1214
total reviews

This product is available in:

Individual Quart Bottles
Cases of 12 Quart Bottles
Individual Gallon Jugs
Cases of 4 Gallon Jugs
Individual 55 Gallon Drums
275 Gallon Totes
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Product Code:

XLOQT-EA

Review by Dave Mann

AMSOIL Extended-Life 10W-40 100% Synthetic Motor Oil Description

AMSOIL Extended-Life 10W-40 Synthetic Motor Oil is designed for those who demand extended service life from their oil, offering up to 20,000 miles or one year between oil changes. This oil is a blend of advanced synthetic base oils and an enhanced additive package, promoting engine cleanliness and longevity. It maintains its viscosity under extreme conditions, helping to reduce excessive oil consumption and engine deposits. This oil is particularly effective in protecting against low-speed pre-ignition (LSPI), a challenge in modern gasoline direct injection (GDI) and turbocharged engines. The oil’s fortified additive package neutralizes harmful engine acids and resists sludge, corrosion, and carbon deposits, keeping engines clean and efficient. AMSOIL Extended-Life 10W-40 is suitable for applications requiring API SP, SN Plus, SN, ACEA A3/B3, A3/B4 standards, and is compatible with conventional and other synthetic motor oils.

Extended-Life 100% Synthetic Motor Oil

Enhanced Protection for Peace of Mind and Convenience

AMSOIL Extended-Life 100% Synthetic Motor Oil is overbuilt for road warriors so you can confidently drive up to 20,000miles (32,000 km) or one year, whichever comes first, between oil changes. A proprietary combination of advanced synthetic base oils and a boosted additive package promotes cleanliness and prolonged engine life. AMSOIL Extended-Life protection delivers peace of mind and convenience.

AMSOIL Extended-Life 10W-40 100% Synthetic Motor Oil

Resists Oil Breakdown

Extended-Life Synthetic Motor Oil maintains its fluidity (viscosity) under extreme conditions. Some oils break down and significantly increase in viscosity after extended periods of high-temperature operation. These changes can cause excessive oil consumption, engine deposits, accelerated wear and difficult cold-starts. AMSOIL Extended-Life Synthetic Motor Oil resists oil breakdown, ensuring protection in extreme temperatures.

Protects Pistons from Low-Speed Pre-Ignition

AMSOIL Extended-Life Synthetic Motor Oil features unique chemistry to protect your engine against the harmful effects of low-speed pre-ignition(LSPI). LSPI is the spontaneous ignition of the fuel/air mixture prior to spark-triggered ignition. Most new engines feature gasoline direct-injection(GDI), often coupled with a turbocharger. These technologies heighten the possibility of LSPI events, which can destroy pistons and connecting rods. AMSOIL Extended-Life Synthetic Motor Oil is formulated to guard your engine from LSPI.

Keeps Engines Clean

Extended-Life Synthetic Motor Oil is fortified with a boosted additive package that neutralizes acids and resists sludge, corrosion and carbon deposits. The extra protection built into Extended-Life Motor Oil provides peace of mind knowing your vehicle is getting premium protection and the convenience of extended drains.

TYPICAL TECHNICAL PROPERTIES

AMSOIL Extended-Life 10W-40 Synthetic Motor Oil (XLO)

Kinematic Viscosity @ 100°C, cSt (ASTM D445) 15.8
Kinematic Viscosity @ 40°C, cSt (ASTM D445) 104.5
Viscosity Index (ASTM D2270) 161
CCS Viscosity, cP @ (°C) (ASTM D5293) 6056(-25)
Flash Point, °C(°F) (ASTM D92) 234(453)
Fire Point, °C(°F) (ASTM D92) 258(496)
Pour Point, °C(°f) (ASTM D97) -39(-38)
NOACK Volatility, % weight loss (g/100g) (ASTM D5800) 4.7
High-Temperature/High-Shear Viscosity @150°C, 1.0 X 10^6 s.^-1, cP (ASTM D5481) 4.6
Total Base Number (TBN) (ASTM D2896) 11

APPLICATIONS

Use AMSOIL Extended-Life Synthetic Motor Oil in applications that require any of the following specifications:

0W-20 (XLZ)

API SP (Resource Conserving), SN Plus, SN…; ILSAC GF-6A,GF-5, GF-4…; GM dexos1 Gen 3 (supersedes dexos1 Gen 2 and 6094M); ACEA A1/B1; Chrysler MS-6395; Ford WSS-M2C947-A, WSS-M2C947-B1,WSS-M2C962-A1

5W-20 (XLM)

API SP (Resource Conserving), SN Plus, SN…; ILSAC GF-6A,GF-5, GF-4…; GM dexos1 Gen 3 (supersedes dexos1 Gen 2 and 6094M); ACEA A1/B1; Chrysler MS-6395; Ford WSS-M2C930-A, WSS-M2C945-A,WSS-M2C945-B1, WSS-M2C960-A1

5W-30 (XLF)

API SP (Resource Conserving), SN Plus, SN…; ILSAC GF-6A,GF-5, GF-4…; GM dexos1 Gen 3 (supersedes dexos1 Gen 2, 4718M, 6094M,LL-A-025); ACEA A1/B1, A5/B5; Chrysler MS-6395; Ford WSS-M2C929-A,WSS-M2C946-A, WSS-M2C946-B1, WSS-M2C961-A1; Honda HTO-06

10W-30 (XLT)

API SP (Resource Conserving), SN Plus, SN…; ILSAC GF-6A,GF-5, GF-4…; ACEA A1/B1, A5/B5; Chrysler MS-6395; Ford WSS-M2C205-A; GM 4718M, 6094M

10W-40 (XLO)

API SP, SN Plus, SN…; ACEA A3/B3, A3/B4

COMPATIBILITY

AMSOIL Extended-Life Synthetic Motor Oil is compatible with conventional and other synthetic motor oils. Mixing other oils with AMSOIL motor oils, however, will shorten the oil’s life expectancy and reduce its performance benefits. AMSOIL does not support extended drain intervals where oils have been mixed.

Aftermarket oil additives are not recommended for use with AMSOIL synthetic motor oils.

TECHNICAL SERVICES

For immediate answers to your technical questions call (715) 399-TECH (8324) between 8 a.m. and 5 p.m. Central time or email tech@amsoil.com.

SERVICE LIFE

Normal Service – Up to 20,000 miles (32,000 km) or one year, whichever comes first, in personal vehicles not operating under severe service.

Severe Service – Up to 12,000 miles (20,000 km) or one year, whichever comes first. Severe service conditions include commercial or fleet vehicles; excessive idling; or frequent towing, hauling, plowing or driving in dusty conditions.

  • Modified engines (non-stock), racing vehicles and vehicles using alternative fuels (E85, CNG, propane, etc.) are excluded from extended drain interval recommendations.
  • Change at the vehicle manufacturer’s recommended drain interval outside U.S. and Canada.
  • AMSOIL Oil Filters are designed for extended drain intervals. Do not exceed 12,000 miles (20,000 km) or one year with other brand filters unless longer intervals are recommended by the vehicle manufacturer. Always change filter when changing oil.
  • Check oil regularly to maintain proper fill levels. AMSOIL Oil Filters stop smaller particles, flow more oil and last longer than regular filters. For best performance, use AMSOIL Oil Filters.

AMSOIL PRODUCT WARRANTY

Using AMSOIL synthetic lubricants or practicing extended drain intervals does not void your new vehicle or equipment manufacturer's warranty. All AMSOIL lubricants and filters are covered by the AMSOIL Limited Warranty For complete information visit AMSOIL.com/warranty.aspx.

HEALTH & SAFETY

This product is not expected to cause health concerns when used for the intended application and according to the recommendations in the Safety Data Sheet (SDS). An SDS is available at AMSOIL.com or upon request at 715-392-7101. Keep Out of Reach of Children. Don’t pollute. Return used oil to collection centers.

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Reviews

5

star rating

Amsoil

My daughter’s 2016 Jeep renagade run very smooth using this oil. Wouldn’t use any other oils.

5

star rating

Loyal AMSOIL Customer

This is the only oil I will run in my 2016 Jeep JKU. I bought it with right at 30k on the odometer and immediately switched it to AMSOIL. According to its maintenance records it was serviced exclusively at a CDRJ dealership, but I do all my maintenance and wanted to run AMSOIL. The JK ran smoothly before, but when I switched to the AMSOIL it was noticeably smoother and quieter. The same was true for every vehicle I switched over to AMSOIL. If you’re on the fence, give it a try! I seriously doubt you’ll switch back to whatever oil you were running before.

5

star rating

Utmost incredible customer service!

I ordered an oil change kit that arrived short of two quarts of oil. I sent an email to customer service and within just an hour or two I had a response stating the two quarts would be shipped out within 24 hours. With all of the supply chain, logistics, and labor shortages these days, I think that was spectacular serivice.

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