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Extended Life 5W20 Synthetic Motor Oil

A top selling AMSOIL API rated 5W20. Saves gas and time. Good for 2-changes per year. Follow your change indicator.AMSOIL's API 5W-20 Synthetic Motor Oil (XLM)
Extended Life “XL” Synthetic Motor Oils exceed the current performance requirements for gasoline engines and deliver exceptional performance by controlling wear and maximizing fuel economy. Many new vehicles recommend 5W20 to meet emission requirements. Trust the best when using a low viscosity engine oil.

Excellent price for a twice per year oil chance of up to 10,000 Miles - Use Extended-Drain Boost Technology

NOTE: We also have the 0W20 upgrade for those wanting the best in Synthetics & a once per year oil change. Our Legendary 25,000 mile Guarantee. Please call if you have questions.

Call 800-579-0580 for competitive current price.
Or use the online preferred customer portal if you choose to order online.

Buy AMSOIL Life Synthetic API 5W20 In the Online Store Now

Visit our new page dedicated to the AMSOIL XL 5W-20 Extended Life Synthetic Motor Oil

    Package sizes include:

    • 1-Quart Bottles & Cases of 12
    • 1-Gallon Bottles & Cases of 4 (popular for jobbers)
    • 30-Gallon Drum
    • 55-Gallon Drum
    • 275-Gallon Tote

AMSOIL XL Extended Life Synthetic Motor Oils provide better wear control, high- and low-temperature protection and increased fuel economy compared to conventional oils. Formulated with extended-drain boost technology, AMSOIL XL Synthetic Motor Oils provide superior performance for up to 10,000-miles/six months, or longer when recommended in owner’s manuals or indicated by electronic oil life monitoring systems.

This is the best choice for vehicles prone to engine sludge problems limiting the oil change interval. See the AMSOIL Technical Service Bulletin regarding this issue. "Using AMSOIL in engines with possible sludge issues"

Extended-Drain Boost Technology
During normal engine operation, the combustion process creates acidic by-products that can lead to internal component corrosion and a reduction in the life expectancy of the engine oil and engine itself. Formulated with extended-drain boost technology, AMSOIL XL Synthetic Motor Oil employs high-quality synthetic base stocks and a unique additive chemistry to neutralize acids longer than conventional oils. The extra additive package effectively raises the total base number (TBN), a measure of an oil’s useful service life, and provides superior protection and performance throughout the entire drain interval.

AMSOIL, the leader in automotive synthetic lubrication, produced the world’s first API qualified synthetic motor oil in 1972. Trust the extensive experience of AMSOIL, The First in Synthetics®, to do the best job protecting your vehicle.

Lower Maintenance Costs
Cost-conscious motorists, business owners and fleet managers benefit from the extended drain intervals and wear protection of AMSOIL XL Synthetic Motor Oils. While frequent oil changes are expensive, time consuming and inconvenient, longer drain intervals reduce costs and environmental impact, while increased wear control can reduce maintenance costs. With AMSOIL XL Synthetic Motor Oils, motorists realize the convenience and cost savings of extended drain intervals while also providing vehicles with maximum protection.

Improve Fuel Economy - 5W20 is KEY!
Formulated with friction modifiers, AMSOIL XL 5W20 Synthetic Motor Oils are fuel-efficient oils that reduce friction-related energy loss. They provide better fuel economy compared to conventional, non-fuel-efficient motor oils.

Maintain Low Emissions
AMSOIL XL Synthetic Motor Oils are friendly toward modern emissions control systems, promoting proper operation of catalytic converters for optimum service life and low exhaust emissions.

Hot and Cold Engine Protection
AMSOIL XL Synthetic Motor Oils are multi-viscosity formulations. Compared to conventional oils, they better resist the effects of thermal breakdown, including evaporation and viscosity loss, while remaining fluid in cold temperatures for easier cold starts and fast start-up circulation.

Keep Engines Clean
Fortified with detergent and dispersant additives, AMSOIL XL Synthetic Motor Oils are engineered to resist sludge and carbon deposits better than conventional oils. They promote clean operation for longer-lasting, better-running engines

Lower Fleet Maintenance Costs
Cost conscious business owners and fleet managers benefit from the extended drain intervals and wear protection of high quality AMSOIL XL Synthetic Motor Oils. While frequent oil changes are costly, time consuming and inconvenient, longer drain intervals reduce costs (labor, used oil disposal, facility demands) and improve environmental image.

Bid Appropriate
AMSOIL XL Synthetic Motor Oils fulfill the requirements of most public and private purchasing bids. They are cost effective, making them ideal where synthetic motor oil is specified.

AMSOIL XL Synthetic Motor Oils are excellent for use in all types of gasoline-fueled vehicles. They are recommended for all domestic and foreign vehicles requiring any of the listed performance specifications:

XLM 5W-20 Synthetic Motor Oil

  • API SN SM...
  • ILSAC GF-5, GF-4...
  • ACEA A1/B1
  • GM 6049M,
  • Ford WSS-M2C930-A
  • Daimler Chrysler MS-6395N

AMSOIL XL Synthetic Motor Oils are compatible with conventional and other synthetic motor oils. Mixing AMSOIL XL Synthetic Motor Oils with any other oil, however, will shorten the oil life expectancy and reduce the performance benefits. AMSOIL does not support extended drain intervals where oils have been mixed. Aftermarket oil additives are not recommended for use with AMSOIL XL Synthetic Motor Oils.

In gasoline-fueled vehicles, AMSOIL XL Synthetic Motor Oils are recommended for up to 10,000-mile/six-month oil change intervals or longer when recommended in owner's manuals or indicated by electronic oil life monitoring systems. Change aftermarket, original equipment manufacturer or AMSOIL Ea Oil Filter at every oil change.

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

See complete up to date details on the AMSOIL Synthetic XL Series 5W20 motor oil (PDF) with this printable data sheet.


Typical Technical Properties

 AMSOIL Synthetic 5W20 Motor Oil (XLM) [revised 3/14]

Kinematic Viscosity @ 100°C, cSt (ASTM D-445)


Kinematic Viscosity @ 40°C, cSt (ASTM D-445)


Viscosity Index (ASTM D-2270)


CCS Viscosity @ -25°C, cP (ASTM D-2602)

5537 (-30)

Flash Point °C (°F) (ASTM D-92)

226 (439)

Fire Point °C (°F) (ASTM D-92)

242 (467)

Pour Point °C (°F) (ASTM D-97)

-43 (-45)

Noack Volatility, % weight loss (g/100g) (ASTM D-5800)


High Temperature/High Shear Viscosity
@ 150°C and 1.0 X 106 s-1, cP (ASTM D-4683


Four Ball Wear Test @ 40 kgf, 75°C,
1200 rpm, 1 hour, scar diameter, mm (ASTM D-4172)


Total Base Number

For retailers and dealers here are some literature items we offer for this line of products.

Installers: Ask us for your free program brochure - see what XL and OE offer to expand your customer base.

XL Point of Sale Brochure

Product Data Sheet

Choose your Drain Interval - All Amsoil motor oils in the Three Tiered Approach

Whether it is a bearing, gear or cylinder, minimizing contact between components minimizes friction and wear. An oil’s viscosity and inherent lubricity are the key characteristics in minimizing contact between components. When the viscosity is insufficient to totally separate the components, anti-wear or extreme pressure additives provide separation by forming chemical barriers. Most of your shelf brands and bulk oils out there do not use a consistent quality of of these additives.

Synthetic technology is the primary weapon to fight the battle against friction. Synthetic lubricants are chemically engineered from the ground up to ensure molecular uniformity, purity and predictable chemical properties. For these reasons, synthetic lubricants can outperform conventional lubricants in the areas of quality, reliability and service life. AMSOIL synthetic lubricants also feature outstanding additive combinations to provide industry-leading protection against friction and ensure peak equipment operation and longevity. That means better mileage, less downtime, less maintenance and more savings for you and your customers.




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