AMSOIL Frequently Asked Questions

Answers to common questions about AMSOIL oil, lubricants, and maintenance products.

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Everything you need to know, from product benefits & compatibility to ordering & maintenance tips.

No matter if you’re new to AMSOIL or looking to learn more about what makes our products stand out, this FAQ section has the information to help! Since introducing the world’s first synthetic motor oil to meet API requirements in 1972, AMSOIL has set the standard for innovation and performance in lubrication. Here, you’ll find answers to some of the most common questions—how to purchase AMSOIL products, how they impact vehicle warranties, what makes synthetic oil different from conventional oil, and why AMSOIL motor oils are trusted for their extended drain intervals and superior protection.

Your engine’s thirsty.

Slide into our DMs… or just fill out the form.

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AMSOIL's Frequently Asked Questions

  • How can I purchase AMSOIL products?

    Order through the AMSOIL Online Store, call 1-800-956-5695 or find a local Dealer. Become a Preferred Customer and purchase AMSOIL products at wholesale cost, which is approximately 25 percent less than retail price.

  • How long have AMSOIL lubricants been on the market?

    AMSOIL products have been available since 1972, when AMSOIL 10W-40 Synthetic Motor Oil became the first synthetic motor oil to meet American Petroleum Institute (API) service requirements. Today, AMSOIL manufactures synthetic lubricants for virtually all automotive, powersports, commercial and industrial applications.

  • How does using AMSOIL synthetic motor oil affect new vehicle warranties?

    Using AMSOIL synthetic motor oil has no affect on vehicle warranties. A federal law called the Magnuson-Moss Act (1975) prevents original equipment manufacturers from putting conditions on vehicle warranties attached to any product or service identified by brand, trade or corporate name, unless the manufacturer provides that product or service free of charge. This means consumers have the freedom to use aftermarket products of their choice without fear of losing the original limited or implied vehicle warranty. For additional information, contact the AMSOIL Technical Department at (715) 399-TECH (8324) or tech@amsoil.com.

  • Will extending oil change intervals void new vehicle warranties?

    No. Extending oil change intervals will not void new vehicle warranties. To affect the vehicle warranty, it must be determined that the lubricant was directly responsible for the failure; if the oil didn’t cause the problem, the warranty cannot be voided, regardless of brand or length of time in use.

  • Does AMSOIL have a warranty for products?

    Yes. AMSOIL provides a limited warranty on all AMSOIL lubricants and filters.

  • What is the difference between synthetic and conventional oil?

    Motor oil, whether synthetic or petroleum-based, consists of molecular chains of hydrogen and carbon atoms, referred to as hydrocarbons. Petroleum crude oil is a thick, highly flammable dark-brown or greenish liquid with high energy density. Many contaminating elements exist in this complex mixture of hydrocarbons, including sulfur, nitrogen, oxygen and metal components such as nickel or vanadium. Petroleum crude oil is the raw material used for a wide variety of petrochemicals, including solvents, fertilizers, plastics and lubricants.


    The oil refining process separates the various types of molecules in the oil by weight, resulting in a concentrated batch suitable for manufacturing products such as gasoline, LPG, kerosene or lubricant base oils. The chemical composition of conventional motor oil can vary substantially depending on the raw crude oil refining process. 


    While petroleum base oils are refined, synthetic base oils are manufactured and can achieve a higher performance level. Synthetic oil is chemically engineered for a certain molecular composition with a tailored and uniform structure. Such fine-tuned control over the final molecular composition of synthetic oils is the key to their superior performance properties. Designing molecular structures in a planned and orderly fashion results in molecules, and end-products, that are far more stable than their refined petroleum counterparts. 

  • Why are AMSOIL synthetic motor oils capable of extended drain intervals?

    AMSOIL synthetic motor oils are formulated using premium synthetic base oils, and the highest-quality additives, that provide extended-drain capabilities. AMSOIL synthetic motor oils achieve greater cleaning powers, while providing better equipment protection over longer oil drain intervals. The unique synthetic formulation and robust TBN retention of AMSOIL synthetic motor oils work to resist oxidation and neutralize the acids that shorten the service lives of other oils. Their characteristic resistance to high-temperature volatility (burn-off) helps reduce oil consumption, while maintaining viscosity over longer periods of time than other oils. Check the product data sheet for specific recommendations.

  • How do AMSOIL synthetic motor oils compare to other motor oils?

    The importance of using good-quality oil in an engine cannot be overstated. AMSOIL synthetic motor oils consistently outperform conventional and other synthetic oils in virtually every category of performance, including wear protection, extreme high- and low-temperature performance, foam control, viscosity retention, rust and corrosion protection, volatility and fuel economy. While other brands may provide good performance in some of these areas, AMSOIL synthetic motor oils consistently perform at the top in every category. Drivers can have confidence knowing that AMSOIL synthetic motor oils provide maximum performance and protection.

  • Can synthetic oil be used in new engines?

    Yes. Synthetic oil is perfectly safe for use in both new and high-mileage engines.

What's Your Choice Of Ride?

We have an AMSOIL product for every vehicle - it's your ride, you decide.

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AMSOIL

Motor Oils

Lubricants

& Protectants

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& Air Filters

Your engine’s thirsty.

Slide into our DMs… or just fill out the form.

Amsoil - FAQ Page #2

AMSOIL // Engineered For What You Drive & How You Drive

From daily drivers to diesel haulers, weekend toys to workhorse machines — every engine deserves oil that’s made to handle the way you use it. Share a few details with us, and we’ll match you with the premium AMSOIL products designed to protect your engine and boost performance where it counts.

High Performance Has No Zip Code Limits

No matter where you wrench or ride, AMSOIL is right there with you.

  • Toledo

    Beverly, Birmingham, Darby (Eastern to South-Old South End), DeVeaux, Crossgates, Five Points, Downtown, East Toledo, Franklin Park, Garfield, Glendale-Heatherdowns (Byrne-Heatherdowns Village), Harvard Terrace, Library Village, Nasby, North Towne, Old Orchard, Old West End, Old South End, Old Town, ONE Village (includes the Polish International Village, Vistula, & North River), ONYX (includes historic Kuschwantz and Lenk's Hill neighborhoods), Ottawa, Point Place, Reynolds Corners, Roosevelt, Scott Park, Secor Gardens (includes the University of Toledo), Southwyck, Wernert's Corner, Trilby, University Hills, Uptown, Warehouse District, Warren Sherman, Westgate, Westmoreland, Point Place 

  • Perrysburg

    Roachton, Lime City, Dowling / Five Points, City Center, Perrysburg South, Perrysburg Southeast, Perrysburg East, Belmont Farms Carrington Woods, Eckel Trace, Hawthorne, Horseshoe Bend, Meigs On The River, Riverbend Lakes, Saddlebrook, Sanctuary Meadows, The Sanctuary, Sanctuary In The Woods, Downtown, Rivercrest, Sheffield Place, The Hamlet, Riverside Park, Woodlands Park, Rossford 

  • Maumee

    Business Corner, Homewood / Monclova, Maumee Northwest, City Center, Maumee East, Thackeray Rd / Maple Tree Dr, Maumee North, 7th St / Craig Rd, Beebe Keep, Blystone, Breckenridge, Byrnwyck, Carisbrook, Clearwater, Crystal Ridge, Deer Valley, Fairfield Park, Fenwyck Arms, Fort Miami Add, Greycliffe at The Quarry, Homestead At The Quarry, Hunts Addn, Hyde Park, Manitou Grounds, Maumee Valley Garden, Meadwood Heights, Miami, Miami Blocks, Olde Farm, Riverside Common, Shadow Valley, Stillwater, Stonegate, The Glen Of Shadow V, The Quarry, Valley Stream, Village Of Fox Hollow, Waterside, Williams Way, Woodbrooke Condos, Wrenwood 

  • Holland

    Sandburr Corners / Spring Valley, Village Center / South Hill Park, Crissey, Holland West, Holland North, Holland-Sylvania, Wolfinger, The Shops at Fallen Timbers, The Strawberry Acres Park, Springfield Township, Haskins, Lambertville, Maumee, Monclova, Ottawa Hills, Perrysburg, Sylvania, Toledo, Waterville, Whitehouse 

  • Sylvania

    Sylvania Southwest, Mitchaw, Silica, Centennial, Sylvania West, Milton Oleander Park, Lourdes University, City Center, Sylvania South, Sylvania East, Downtown, Timberstone, Highland Meadows, North Sylvania, Holland, Ida, Lambertville, Monclova, Ottawa Hills, Ottawa Lake, Petersburg, Temperance 

  • Rossford

    Eagle Point Colony, Downtown Rossford, Colony Estates, Indian Hills, Crossroads 

  • Bowling Green

    Bowling Green West, Bowling Green Southwest, Bowling Green South, Bowling Green North, City Center, Bowling Green Southeast, Bowling Green State University, Westgate Homes, Asbury Hills, Meadowvale, Wintergarden Heights, Hull Prairie, Portage, Tontogany, Sugar Ridge, Scotch Ridge, Rudolph, Haskins, Weston, Jerry City, Pemberville, Grand Rapids - Tontogany, Haskins, Maumee, Neapolis, Perrysburg, Rudolph, Waterville, Weston, Whitehouse 

  • Findlay

    West Independence, West Park, Findlay East, Findlay North, Findlay South, Findlay Southeast, Findlay West, City Center / The University of Findlay, Allen, Big Lick, Blanchard, Eagle, Jackson, Liberty, Marion, Southwest, Downtown Findlay, Emory Adams Park, Riverside Park, West Park, Van Buren, Arcadia, Houcktown, Benton Ridge, McComb, Bairdstown, Vanlue, West Independence, North Baltimore,  Arlington, Bloomdale - Cygnet, Carey, Fostoria, McComb, New Riegel, Rawson, West Millgrove, Wharton 

  • Sandusky

    Bogart / Wilmer, Bay View / Crystal Rock, Venice, Sandusky Southeast, Pipe St / Rohde St, Sandusky East, Sandusky North, MacArthur Park, Cedar Point, Ranch Wood, Venice, Lincolnshire, Fairview Lanes, Southgate Acres, Wilmer, Mineyahta-on-the Bay, Columbus Park, Bogart, Piccola, Marblehead, Bay View, Lakeside, Castalia, Weyers, Sandusky South, Fairview Lanes, Castilia 

  • Fremont

    Ballville, Wightmans Grove, Stony Prairie, Fremont East, Fremont South, City Center, Fremont Southeast, Clyde, Elmore, Green Springs, Helena, Lindsey, Oak Harbor, Old Fort, Port Clinton, Sandusky, Vickery 

  • Fostoria

    Arcadia, Fostoria East, Fostoria North, City Center 

  • Defiance

    Evansport, Ayersville, Arthur / Charloe, Defiance Southwest, Defiance West, Defiance College, City Center, Antwerp, Continental, Holgate, Ney, Oakwood - Grover Hill, Ridgeville Corners, Sherwood, Brunersburg, Ayersville, The Bend, Jewell, Junction, Standley, Rice, Florida 

  • Huron

    Bogart, Ceylon, Chaska Beach, Franklin Flats, Huron, Huron Township, Mitiwanga, North Palm Beach, Oberlin Beach, Ruggles Beach, Rye Beach, Shinrock 

  • Lima

    Central Lima, Lakewood West, Riverside North, Northside Lima, Westgate, Fifth Ward, Southside Lima, Eastside Lima, Dr. Martin Luther King, Jr., Hume / Oakview, Allentown / Kemp, Slabtown, Elida, Fort Shawnee, Cridersville, Rousculp / South Warsaw, Fort Shawnee West, Spencerville Rd / Shawnee Rd, Buckland, Cairo, Delphos, Gomer, Harrod, Lafayette, Spencerville, Wapakoneta, Waynesfield 

  • Tiffin

    Tiffin South, Swander/Heidelberg University, Tiffin West, Center, Tiffin Southwest, City Center/Tiffin University, Bascom, Melmore, Fort Seneca, Maple Grove, Mexico, New Riegel, Republic, Old Fort, Bettsville, Attica - Bloomville, Bucyrus, Fostoria, Sycamore 

  • Columbus

    Downtown, Arena District, Short North, German Village, Victorian Village, Olde Towne East, Clintonville, Franklinton, Linden, Harrison West, Westerville, Dublin, Gahanna, Hilliard, Upper Arlington, Worthington, Grove City, New Albany 

  • Cleveland

    Clark‑Fulton, Ohio City, Tremont, University Circle, Edgewater, Glenville, Broadway‑Slavic Village, MidTown, Cudell, Old Brooklyn, West Park, Lakewood, Parma, Euclid, Shaker Heights, Rocky River, Westlake 

  • Cincinnati

    Over‑the‑Rhine, Mt. Adams, Clifton, Oakley, East Walnut Hills, Hyde Park, Norwood, Blue Ash, Madeira, Sharonville, Wyoming, Pleasant Ridge, Northside, College Hill 

  • Akron

    Highland Square, Ellet, Goodyear Heights, Kenmore, Cuyahoga Falls, Stow, Fairlawn, Hudson, Tallmadge, Barberton 

  • Dayton

    Oregon District, South Park, Wright‑Patterson area, Kettering, Beavercreek, Centerville, Huber Heights, Oakwood, Tipp City 

  • Parma

    Parma Heights, Seven Hills, Brooklyn, Brook Park, Parma South, North Parma, Ridgewood 

  • Canton

    North Canton, Plain Township, Louisville, Avondale, Belden Village 

  • Lorain

    Sheffield Lake, Avon, Elyria, Oberlin, Amherst 

  • Hamilton

    Fairfield, Middletown, Ross, Oxford, Trenton 

  • Youngstown

    Boardman, Austintown, Canfield, Poland, Struthers 

  • Springfield

    Urbana, West Liberty, Mechanicsburg, Enon, South Charleston 

  • Kettering

    Centerville, Beavercreek, Dayton, Kettering North, Kettering South 

  • Elyria

    Lorain, Amherst, Avon, Oberlin, West Elyria, East Elyria

  • Middletown

    Monroe, Trenton, Franklin 

  • Newark

    Heath, Granville, Johnstown, Hebron 

  • Cuyahoga Falls

    Hudson, Stow, Akron, Silver Lake 

  • Dublin

    Hilliard, Westerville, Gahanna, Worthington 

  • Lakewood

    Cleveland, Rocky River, Westlake 

  • Mansfield

    Ontario, Lexington, Shelby, Ashland, South End, Woodland 

  • Southeast Michigan

    Monroe, Lambertville, Temperance, Dundee, Blissfield, Adrian, Tecumseh, Hudson, Manitou Beach, Devils Lake, Hillsdale, Morenci 

High Performance, Higher Praise // AMSOIL Reviews Straight from the Source

From coast to coast, AMSOIL Dealers are earning high marks from customers who know their engines. Whether it’s a daily driver in New York, a dirt bike in Arizona, or a diesel truck in Texas, real reviews are rolling in from every corner of the country — all praising the performance, protection, and reliability that AMSOIL delivers.