Extended Life 0W-20 Improved to 20,000 miles or one year.
Extended Life is The best choice for Sioux Falls Drivers
Use this chart to compare our various offerings but the Extended Life offers the more than adequate protection for most drivers needs as Signature but at an excellent price. Knowing that XL (Extended Life 0W-20) still outperforms the competition with it’s real 100% synthetic base stock makes it an excellent choice.
100% Synthetic Resists Oil Breakdown
AMSOIL Extended-Life 100% Synthetic Motor Oil is overbuilt for road warriors so you can confidently drive up to 20,000 miles (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.
Product Data Sheet PDF
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Protects Pistons from Low-Speed Pre-Ignition
XL Synthetic Motor Oil features unique chemistry proven 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-inject (GDI), often coupled with a turbocharger. These technologies heighten the possibility of LSPI events, which can destroy pistons and connecting rods. A properly formulated motor oil is critical for protecting your engine against LSPI.
Original equipment manufacturers (OEMs) like GM have addressed the issue by designing tests to determine a motor oil’s ability to prevent LSPI. XL Synthetic Motor Oil achieved 100 percent protection against LSPI2 – zero occurrences were recorded throughout five consecutive tests.
Vehicle Look-up: Match AMSOIL Products to your model
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 provide peace of mind knowing your vehicle is getting premium protection and the convenience of extended drains.
Reduces Maintenance
Motorists, business owners and fleet managers benefit from the boosted engine protection of AMSOIL XL Synthetic Motor Oil. Frequent oil changes are expensive, time-consuming and inconvenient. The extra protection built into XL can provide extended drain intervals up to 20,000 miles or one year4, if you choose, allowing you to change oil on your schedule, reduce maintenance, save money and reduce waste oil.
Maximizes Fuel Economy & Maintains Low Emissions
XL Synthetic Motor Oil is licensed by the American Petroleum Institute (API) to meet and exceed the requirements commonly found in owner’s manuals. It excels in fuel-economy testing, earning the additional “Resource Conserving” designation5 from the API. XL is also friendly toward modern emissions control systems, promoting proper operation of catalytic converters for optimum service life and low exhaust emissions.
APPLICATIONS
Use AMSOIL XL Synthetic Motor Oil in applications that require any of the following specifications:
0W-20 (XLZ)
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
COMPATIBILITY
AMSOIL XL Synthetic Motor Oil is compatible with conventional and other synthetic motor oils. Mixing other oils with AMSOIL motor oils, 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 Oil.
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 products are backed by a Limited Liability Warranty. For complete information visit AMSOIL Warranty Information/.
Buy in the Sioux Falls AMSOIL store at 47073 98th St (Tea Exit 73) Or visit our in stock display inside of Stan Houston’s on W. 12th St. (Old Kmart).
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Extended Life 0W-20 Customer Comments:
Great Product, Worth the Price
By JAMES, a Verified Buyer from Kansas City on July 03, 2025
Recently purchased this for my wife’s 2023 GMC Acadia. After changing the oil, the motor was noticeably quieter and smoother. I was hesitant at first to spend the additional money for the Amsoil, after all, “oil is oil right”. Not the case at all! I will be purchasing Amsoil from here on out for our vehicles!
Best oil in the market
By DALE, a Verified Buyer from Nevada on June 29, 2025
After my oil change, I drove my car for 100 miles, and I felt a big difference in the performance. I had no loss power, and the engine ran smoother than before. I am very pleased with my choice in the oil. I plan to continue using this product in my future oil changes.
Quality product!
By MARC, a Verified Buyer on June 27, 2025
I’ve noticed my ‘92 Firebird’s engine (141,000 miles) quiet down a bit after the oil change.
As Expected
By GREG, a Verified Buyer from Arizona on June 08, 2025
Just completed my second LOF on my 3.6l Jeep. First fill went 12 months. No leaks, gas mileage didn’t change, and no strange noises. I will continue to use Amsoil.
Protection that last
By HAROLD, a Verified Buyer from Bismarck MO. on April 19, 2025
I’ve been using Amsoil since 2012. I’ve used it in my diesel trucks and now my eco boost. The engine runs smooth and quiet. I find comfort in knowing my turbos will last. I run it in everything I own.
I will continue to buy this product.
By Gene 12/27/2016
I use this in my 2013 GMC Sierra 1500 Z-71. It’s been a great product. Living in cold temps, and usually making short trips, this fits the profile my truck needs.
Amsoil XL 0W-20 motor oil
By Floyd 12/23/2016
from undisclosed
I have been using this oil in my present 2012 Honda Pilot since I bought it and is excellent oil. I also used it in my 2000 Acura TL for about 4 years before I sold it. Never an issue with oil problems using this oil..