XL 10W-30 Synthetic Motor Oil

In Omaha the 10W-30 is a big seller to several of our fleet customers. People who do a LOT of stop and go like florists, landscapers, plumbers, couriers, heating and refrigeration fleets, and a golf course, use this product as it can be used as a one size fits all. You can run a 10W-30 no problem in cars which call for a 5W-30. The only difference is it’s slightly more in viscosity at start-up. That’s all! But small engines like the higher start-up viscosity so it’s a winning combination. And it’s great in low temperature climates.

Boosted Protection For Extended Life

Resists Oil Breakdown

AMSOIL Extended-Life 10W-30 100% Synthetic Motor OilXL Synthetic Motor Oil maintains its fluidity (viscosity) under the most 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. The GM Oxidation and Deposit (GMOD) Test consists of a 5.7L V8 engine running at 293ºF (100º hotter than normal) for 100 hours. These severe operating conditions test an oils ability to control viscosity increase, deposits and oil consumption. The testing revealed that AMSOIL XL Synthetic Motor Oil provides 64 percent more protection against oil breakdown1 than required by the GM dexos1® Gen 2 specification, ensuring protection in extreme temperatures.

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Buy & Check PriceAnd Container Size

Buy in the Omaha store at 84th & G or use this Online link to the XL 10W-30 sale page if you are outside of the area.

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.

Keeps Engines Clean

AMSOIL XL Synthetic Motor Oil is fortified with detergent and dispersant additives. Its boosted additive package effectively raises the total base number (TBN) to neutralize acids and resist sludge, corrosion and carbon deposits. XL provides 25 percent more cleaning power3 to help keep your engine running smoother, longer.

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 12,000 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 licenced 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.

1Based on independent testing of AMSOIL XL 5W-30 motor oil in the GMOD engine test required for the GM dexos1 Gen2 specification.

2Based on zero LSPI events in five consecutive tests of AMSOIL XL 5W-30 Motor Oil in the LSPI engine test required by the GM dexos1 Gen 2 specification.

3vs. AMSOIL OE Motor Oil

4See reverse side for details.

5Applicable to XL 0W-20, 5W-20, 5W-30 and 10W-30 motor oil.

All trademarked names 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.


Use AMSOIL XL Synthetic Motor Oil in applications that require any of the following specifications:

10W-30 (XLT)

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


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.


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.


In gasoline-fueled vehicles, AMSOIL XL Synthetic Motor Oil is recommended for up to 12,000 miles/one year oil change intervals, or longer when recommended in owner’s manuals or indicated by electronic oil life monitoring systems. Change the
oil filter at every oil change regardless of filter brand.


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/.


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 via the Internet at www.amsoil.com or upon request at 715-392-7101. Keep Out of Reach of Children. Recycle used oil and bottle.

*All trademarked 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. All products advertised here are developed by AMSOIL for use in the applications shown.


Customer Comments:

Toyota purrs
By gopher 8/29/2016

from Gainesville,Ga

I used XL 10-30 in my 1982 Toyota P’up with 22R engine. She ran smoother, cooler & quieter. Used Amsoil in transmission & differential. Still running strong @ 344,000 miles!

How would you describe yourself?:
I’m a DIY handyman

What kind of vehicle/equipment do you have?:
2016 GMC Sierra 1500, 2011 Honda Odyssey

Bottom Line
Yes, I would recommend this to a friend


I would never use anything but Amsoil in any of my vehicles
By Tim 12/24/2016

from undisclosed

Have used the XL oil every 10,000 miles since the day I purchased my new 06 Focus in late 05 ; and at 265, 00 miles I use virtually no oil between changes ; that’s no oil usage in 10,000 miles !!


This product is great!
By Ben 12/8/2016

from undisclosed

I use the XL series for my personal vehicles. 2006 Mazda and a 2008 Chevy. I am very happy that my vehicles run and operate like brand new everytime.