Amsoil High-Performance Oil, Air, Fuel & Coolant Filters
From Oil and Fuel to Cabin and Coolant Filters, Amsoil Keeps Your Engine Clean and Efficient
Shop Filter Solutions for Every Vehicle // Air, Fuel & Coolant Filters
Engineered to Protect Your Vehicle & Extend Engine Life in Cars, Trucks, & SUVs
For years, the team at Amsoil has been developing and manufacturing some of the best filters for your car, truck and SUVs. From oil filters to fuel filters, our development team and filter partners have spent time in the lab testing materials and designs to develop the perfect filter for commercial and consumer vehicles. Not only do Amsoil and our partners’ filters perform better than OEM options, but they are also tested in every possible environment, ensuring our lineup is built to last here in Northwest Ohio, whether we are dealing with a sudden winter storm or humid summer day.
Your engine’s thirsty.
Slide into our DMs… or just fill out the form.
Form #1
We will get back to you as soon as possible.
Please try again later.
How Does an Oil Filter Work?
Oil filters are among the most important components of your oil system, cleaning your engine oil while your engine is operating. Most oil filters work by forcing engine oil through a porous medium, normally either paper or a synthetic fibre, using pressure from the oil pump. Once the oil enters the small perimeter holes in the oil filter, it passes over the filtering media, which traps contaminants, before allowing the oil to flow back to the engine through a central hole into the oil pan. These filters will remove dirt, metal, and soot from your oil and help you extend your engine's life when installed properly and regularly changed.
How Does an Air Filter Work?
The vast majority of commercial and residential vehicles will have two sets of air filters on the vehicle. The first is your engine air filter, which will remove dust and dirt from your engine bay. The second is your cabin filter, which removes allergens, dust, and pollen before they can enter the cab or passenger area of your vehicle. These filters work by forcing air through a dense fibrous material, such as pleated paper or foam, and trapping airborne particulates before they enter the engine or passenger area via your heating and cooling systems.
How Does an Fuel Filter Work?
Fuel filters work much like an oil filter and are an essential part of your internal combustion engine system, ensuring that contaminants do not make their way from the pump to your engine. Fuel filters work by forcing fuel through a porous, pleated medium, typically cellulose or a synthetic fibre, and then returning the filtered fuel to the tank. These filters will help trap dirt, water, and rust before they enter your engine and cause issues down the line.
How Does an Coolant Filter Work?
Coolant is such an underappreciated part of your engine, especially in a harsh climate like the one we have in the Great Lakes region. Coolant filters are often set up in a by-pass circuit, which allows a certain percentage of your coolant to be treated and to add additives to prevent corrosion, such as Supplemental Coolant Additives. These paper or synthetic filters will trap sediment, rust, and debris that can otherwise lead to component wear and overheating.
Shop AMSOIL Filters
Trusted U.S.-Made Filters Engineered for Maximum Performance & Reliability
Ever since we first started manufacturing our own filters, we have taken pride in pushing the technology and effectiveness of these filters. Today, we are one of the best filter manufacturers in the United States, and our filters are trusted by engine builders and racing teams across the country. For some of our filters, Amsoil partners with the leading brands that can match our better-than-OEM commitments and deliver a filter that we are proud to sell in our network of Independent Amsoil Dealers.
Oil Filters
Our Amsoil oil filter is the industry standard for standard and heavy-duty vehicles. With a filtering efficiency of 99 percent at 20 microns and a greater capacity for small, wear causing contaminates, our filter is simply the only one you need for your vehicle. We are also happy to carry a wide range of filters, including powersports oil filters, bypass oil filters and hydraulic oil filters that are the first choice for engine manufacturers.
Air Filters
Whether you are looking for engine or cabin air filters, Amsoil offers better-than-OEM options that meet your needs. From Powercore filters for GM 6.6L Duramax Diesels to Wix and Donaldson filters that are made right here in the United States, our air filters will remove harmful particulates and allergens from your air once and for all.
Fuel Filters
We are proud to carry a wide variety of fuel filters that improve upon OEM options and help reduce engine wear. Through partnerships with Wix and Mann and Donaldson, you can enjoy a fuel filter that removes water, dirt, and grime, helping to limit engine wear and clean up your fuel for a consistent burn.
Coolant Filters
Our coolant filter options ensure your coolant is properly filtered before it does its job in your engine. We carry Donaldson’s P-Series Heavy Duty Coolant Filters, which will make cooling those larger heavy-duty engines a little cleaner.
Shop ALL AMSOIL Filters for Every Need
We Carry All Types: Find Car & Truck Oil Filters, Powersports Filters, Air, Fuel, Cabin, Coolant, Bypass, Hydraulic & More in One Place
What's Your Choice Of Ride?
We have an AMSOIL product for every vehicle - it's your ride, you decide.
Frequently Asked Questions
No Dumb Questions, Just Dry Dipsticks
What is the difference between air filters and cabin filters?
There is no difference between your engine air filter and your cabin filter in terms of functionality. Both will use a paper or synthetic filter to capture larger and smaller particles. Generally, engine oil filters can be a little more heavy-duty, given the environment they operate in. Additionally, some clients want HEPA-rated air filters for their cabin, which can capture even the smallest contaminants before they enter the cabin air.
Is a hydraulic oil filter different from an oil filter?
Although both have "oil" in their names, these two filters are not interchangeable. Hydraulic filters are designed to operate in high-pressure systems, typically between 2000 and 5000 PSI, with finer filtration. In comparison, engine oil filters are designed to work in lower-pressure environments and will filter up to 20 microns.
Why would you want a bypass oil filter?
By-pass oil filters serve as a secondary filtration system in most engines and can extend engine life and oil change intervals. These systems generally filter down to 2-5 microns, helping prevent sludge buildup and improve overall oil cooling for your engine.
What is a crankcase breather?
A crankcase breather is a component of your engine’s Positive Crankcase Ventilation system that releases pressure and allows fresh air into the crankcase. The component is there to prevent the buildup of gases that can escape through the piston rings, leading to seal damage, poor engine performance, and oil leaks.
Your engine’s thirsty.
Slide into our DMs… or just fill out the form.
Amsoil - Motor Oil Weight #2
We will get back to you as soon as possible.
Please try again later.
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.
United States
Alabama
Huntsville, Birmingham, Montgomery, Mobile, Tuscaloosa, Hoover, Dothan, Auburn, Decatur, Madison, Florence, Gadsden, Vestavia Hills, Prattville, Phenix City, Alabaster, Bessemer, Enterprise, Opelika, Homewood
Alaska
Anchorage, Fairbanks, Juneau, Wasilla, Sitka, Ketchikan, Kenai, Kodiak, Bethel, Palmer, Homer, Utqiagvik, Soldotna, Valdez, Nome, Wrangell, North Pole, Dillingham, Cordova, Seward
Arizona
Phoenix, Tucson, Mesa, Chandler, Scottsdale, Glendale, Gilbert, Tempe, Peoria, Surprise, Yuma, Avondale, Flagstaff, Goodyear, Buckeye, Lake Havasu City, Casa Grande, Sierra Vista, Maricopa, Oro Valley
Arkansas
Little Rock, Fort Smith, Fayetteville, Springdale, Jonesboro, North Little Rock, Conway, Rogers, Bentonville, Pine Bluff, Benton, Texarkana, Sherwood, Jacksonville, Russellville, Bella Vista, West Memphis, Paragould, Cabot, Searcy
California
Los Angeles, San Diego, San Jose, San Francisco, Fresno, Sacramento, Long Beach, Oakland, Bakersfield, Anaheim, Santa Ana, Riverside, Stockton, Irvine, Chula Vista, Fremont, San Bernardino, Modesto, Fontana, Oxnard
Colorado
Denver, Colorado Springs, Aurora, Fort Collins, Lakewood, Thornton, Arvada, Westminster, Pueblo, Centennial, Boulder, Greeley, Longmont, Loveland, Grand Junction, Broomfield, Castle Rock, Commerce City, Parker, Littleton
Connecticut
Bridgeport, Stamford, New Haven, Hartford, Waterbury, Norwalk, Danbury, New Britain, West Hartford, Greenwich, Hamden, Meriden, Bristol, Manchester, West Haven, Milford, Stratford, East Hartford, Middletown, Wallingford
Delaware
Wilmington, Dover, Newark, Middletown, Smyrna, Milford, Seaford, Georgetown, Elsmere, New Castle, Millsboro, Laurel, Harrington, Camden, Clayton, Lewes, Milton, Selbyville, Bridgeville, Townsend
Florida
Jacksonville, Miami, Tampa, Orlando, St. Petersburg, Port St. Lucie, Cape Coral, Tallahassee, Fort Lauderdale, Pembroke Pines, Hollywood, Gainesville, Miramar, Coral Springs, Palm Bay, West Palm Beach, Clearwater, Lakeland, Pompano Beach, Miami Gardens
Georgia
Atlanta, Augusta, Columbus, Macon, Savannah, Athens, Sandy Springs, Roswell, Johns Creek, Albany, Warner Robins, Alpharetta, Marietta, Valdosta, Smyrna, Dunwoody, Rome, East Point, Milton, Gainesville
Hawaii
Honolulu, East Honolulu, Pearl City, Hilo, Waipahu, Kailua, Kaneohe, Mililani Town, Kahului, Ewa Gentry, Kihei, Makakilo, Wahiawa, Schofield Barracks, Wailuku, Kapolei, Halawa, Waimalu, Royal Kunia, Waipio
Idaho
Boise, Meridian, Nampa, Idaho Falls, Pocatello, Caldwell, Coeur d'Alene, Twin Falls, Lewiston, Post Falls, Rexburg, Eagle, Moscow, Kuna, Ammon, Chubbuck, Hayden, Mountain Home, Blackfoot, Garden City
Illinois
Chicago, Aurora, Naperville, Joliet, Rockford, Springfield, Elgin, Peoria, Champaign, Waukegan, Cicero, Bloomington, Arlington Heights, Evanston, Decatur, Schaumburg, Bolingbrook, Palatine, Skokie, Des Plaines
Indiana
Indianapolis, Fort Wayne, Evansville, South Bend, Carmel, Fishers, Bloomington, Hammond, Gary, Muncie, Lafayette, Terre Haute, Kokomo, Anderson, Noblesville, Greenwood, Elkhart, Mishawaka, Lawrence, Jeffersonville
Iowa
Des Moines, Cedar Rapids, Davenport, Sioux City, Iowa City, Waterloo, Council Bluffs, Ames, West Des Moines, Ankeny, Urbandale, Cedar Falls, Marion, Bettendorf, Mason City, Marshalltown, Clinton, Burlington, Fort Dodge, Ottumwa
Kansas
Wichita, Overland Park, Kansas City, Topeka, Olathe, Lawrence, Shawnee, Manhattan, Lenexa, Salina, Hutchinson, Leavenworth, Leawood, Dodge City, Garden City, Junction City, Emporia, Derby, Prairie Village, Liberal
Kentucky
Louisville, Lexington, Bowling Green, Owensboro, Covington, Richmond, Georgetown, Florence, Hopkinsville, Nicholasville, Elizabethtown, Henderson, Frankfort, Jeffersontown, Independence, Paducah, Radcliff, Ashland, Madisonville, Winchester
Louisiana
New Orleans, Baton Rouge, Shreveport, Lafayette, Lake Charles, Kenner, Bossier City, Monroe, Alexandria, Houma, Marrero, New Iberia, Laplace, Slidell, Central, Prairieville, Ruston, Sulphur, Hammond, Natchitoches
Maine
Portland, Lewiston, Bangor, South Portland, Auburn, Biddeford, Sanford, Saco, Augusta, Westbrook, Waterville, Presque Isle, Brewer, Bath, Caribou, Old Town, Rockland, Belfast, Gardiner, Calais
Maryland
Baltimore, Columbia, Germantown, Silver Spring, Waldorf, Glen Burnie, Ellicott City, Frederick, Dundalk, Rockville, Bethesda, Gaithersburg, Towson, Bowie, Aspen Hill, Wheaton, Bel Air, Potomac, Severn, North Bethesda
Massachusetts
Boston, Worcester, Springfield, Cambridge, Lowell, Brockton, New Bedford, Quincy, Lynn, Fall River, Newton, Lawrence, Somerville, Framingham, Haverhill, Waltham, Malden, Brookline, Plymouth, Medford
Michigan
Detroit, Grand Rapids, Warren, Sterling Heights, Ann Arbor, Lansing, Flint, Dearborn, Livonia, Westland, Troy, Farmington Hills, Kalamazoo, Wyoming, Southfield, Rochester Hills, Taylor, Pontiac, St. Clair Shores, Royal Oak
Minnesota
Minneapolis, St. Paul, Rochester, Duluth, Bloomington, Brooklyn Park, Plymouth, Maple Grove, Woodbury, St. Cloud, Eagan, Eden Prairie, Coon Rapids, Burnsville, Blaine, Lakeville, Minnetonka, Apple Valley, Edina, St. Louis Park
Mississippi
Jackson, Gulfport, Southaven, Hattiesburg, Biloxi, Meridian, Tupelo, Greenville, Olive Branch, Horn Lake, Clinton, Pearl, Madison, Ridgeland, Starkville, Columbus, Vicksburg, Pascagoula, Brandon, Oxford
Missouri
Kansas City, St. Louis, Springfield, Columbia, Independence, Lee's Summit, O'Fallon, St. Joseph, St. Charles, St. Peters, Blue Springs, Florissant, Joplin, Chesterfield, Jefferson City, Cape Girardeau, Wildwood, University City, Ballwin, Raytown
Montana
Billings, Missoula, Great Falls, Bozeman, Butte, Helena, Kalispell, Havre, Anaconda, Miles City, Belgrade, Livingston, Laurel, Whitefish, Sidney, Lewistown, Glendive, Dillon, Hamilton, Polson
Nebraska
Omaha, Lincoln, Bellevue, Grand Island, Kearney, Fremont, Hastings, North Platte, Norfolk, Columbus, Papillion, La Vista, Scottsbluff, South Sioux City, Beatrice, Lexington, Alliance, Gering, York, McCook
Nevada
Las Vegas, Henderson, Reno, North Las Vegas, Sparks, Carson City, Fernley, Elko, Mesquite, Boulder City, Pahrump, Fallon, Winnemucca, West Wendover, Ely, Yerington, Carlin, Lovelock, Wells, Caliente
New Hampshire
Manchester, Nashua, Concord, Dover, Rochester, Salem, Merrimack, Londonderry, Hudson, Derry, Bedford, Keene, Portsmouth, Goffstown, Laconia, Hampton, Milford, Durham, Exeter, Windham
New Jersey
Newark, Jersey City, Paterson, Elizabeth, Edison, Woodbridge, Lakewood, Toms River, Hamilton, Trenton, Clifton, Camden, Brick, Cherry Hill, Passaic, Union City, Old Bridge, Middletown, Gloucester Township, East Orange
New Mexico
Albuquerque, Las Cruces, Rio Rancho, Santa Fe, Roswell, Farmington, Clovis, Hobbs, Alamogordo, Carlsbad, Gallup, Deming, Los Lunas, Chaparral, Sunland Park, Las Vegas, Portales, Los Alamos, North Valley, Artesia
New York
New York City, Buffalo, Rochester, Yonkers, Syracuse, Albany, New Rochelle, Mount Vernon, Schenectady, Utica, White Plains, Hempstead, Troy, Niagara Falls, Binghamton, Freeport, Valley Stream, Long Beach, Rome, Ithaca
North Carolina
Charlotte, Raleigh, Greensboro, Durham, Winston-Salem, Fayetteville, Cary, Wilmington, High Point, Concord, Asheville, Greenville, Gastonia, Jacksonville, Chapel Hill, Huntersville, Apex, Burlington, Rocky Mount, Wilson
North Dakota
Fargo, Bismarck, Grand Forks, Minot, West Fargo, Williston, Dickinson, Mandan, Jamestown, Wahpeton, Watford City, Devils Lake, Valley City, Grafton, Beulah, Rugby, Stanley, Horace, Lincoln, New Town
Ohio
Columbus, Cleveland, Cincinnati, Toledo, Akron, Dayton, Parma, Canton, Youngstown, Lorain, Hamilton, Springfield, Kettering, Elyria, Lakewood, Cuyahoga Falls, Middletown, Euclid, Newark, Mansfield
Oklahoma
Oklahoma City, Tulsa, Norman, Broken Arrow, Edmond, Lawton, Moore, Midwest City, Enid, Stillwater, Muskogee, Bartlesville, Owasso, Shawnee, Ponca City, Yukon, Duncan, Bixby, Ardmore, Sapulpa
Oregon
Portland, Salem, Eugene, Gresham, Hillsboro, Bend, Beaverton, Medford, Springfield, Corvallis, Albany, Tigard, Lake Oswego, Keizer, Grants Pass, Oregon City, McMinnville, Redmond, Tualatin, West Linn
Pennsylvania
Philadelphia, Pittsburgh, Allentown, Erie, Reading, Scranton, Bethlehem, Lancaster, Harrisburg, Altoona, York, State College, Wilkes-Barre, Chester, Norristown, Williamsport, Easton, Lebanon, Hazleton, New Castle
Rhode Island
Providence, Cranston, Warwick, Pawtucket, East Providence, Woonsocket, Coventry, Cumberland, North Providence, South Kingstown, West Warwick, Johnston, North Kingstown, Newport, Bristol, Westerly, Smithfield, Lincoln, Central Falls, Portsmouth
South Carolina
Columbia, Charleston, North Charleston, Mount Pleasant, Rock Hill, Greenville, Summerville, Sumter, Goose Creek, Hilton Head Island, Florence, Spartanburg, Myrtle Beach, Aiken, Anderson, Greer, Mauldin, Greenwood, North Augusta, Easley
South Dakota
Sioux Falls, Rapid City, Aberdeen, Brookings, Watertown, Mitchell, Yankton, Pierre, Huron, Vermillion, Spearfish, Brandon, Box Elder, Sturgis, Madison, Belle Fourche, Harrisburg, Mobridge, Milbank, Winner
Tennessee
Nashville, Memphis, Knoxville, Chattanooga, Clarksville, Murfreesboro, Franklin, Jackson, Johnson City, Bartlett, Hendersonville, Kingsport, Collierville, Smyrna, Cleveland, Brentwood, Columbia, Spring Hill, Gallatin, La Vergne
Texas
Houston, San Antonio, Dallas, Austin, Fort Worth, El Paso, Arlington, Corpus Christi, Plano, Laredo, Lubbock, Garland, Irving, Amarillo, Grand Prairie, Brownsville, McKinney, Frisco, Pasadena, Mesquite
Utah
Salt Lake City, West Valley City, Provo, West Jordan, Orem, Sandy, Ogden, St. George, Layton, South Jordan, Lehi, Millcreek, Taylorsville, Logan, Murray, Draper, Bountiful, Riverton, Roy, Herriman
Vermont
Burlington, South Burlington, Rutland, Essex Junction, Colchester, Bennington, Brattleboro, Milton, Hartford, Springfield, Barre, Williston, St. Albans, Middlebury, Montpelier, Winooski, St. Johnsbury, Newport, Vergennes, Swanton
Virginia
Virginia Beach, Chesapeake, Norfolk, Richmond, Newport News, Alexandria, Hampton, Roanoke, Portsmouth, Suffolk, Lynchburg, Harrisonburg, Leesburg, Charlottesville, Danville, Blacksburg, Manassas, Petersburg, Fredericksburg, Winchester
Washington
Seattle, Spokane, Tacoma, Vancouver, Bellevue, Kent, Everett, Renton, Federal Way, Spokane Valley, Yakima, Kirkland, Bellingham, Kennewick, Auburn, Pasco, Marysville, Lakewood, Redmond, Shoreline
West Virginia
Charleston, Huntington, Parkersburg, Morgantown, Wheeling, Weirton, Fairmont, Martinsburg, Beckley, Clarksburg, South Charleston, St. Albans, Vienna, Bluefield, Moundsville, Bridgeport, Oak Hill, Dunbar, Elkins, Nitro
Wisconsin
Milwaukee, Madison, Green Bay, Kenosha, Racine, Appleton, Waukesha, Eau Claire, Oshkosh, Janesville, West Allis, La Crosse, Sheboygan, Wauwatosa, Fond du Lac, New Berlin, Wausau, Brookfield, Beloit, Greenfield
Wyoming
Cheyenne, Casper, Laramie, Gillette, Rock Springs, Sheridan, Green River, Evanston, Riverton, Jackson, Cody, Rawlins, Lander, Torrington, Powell, Douglas, Worland, Buffalo, Wheatland, Newcastle
Canada
Ontario
Toronto, Ottawa, Mississauga, Brampton, Hamilton, London, Markham, Vaughan, Kitchener, Windsor, Richmond Hill, Oakville, Burlington, Oshawa, Barrie, St. Catharines, Cambridge, Kingston, Whitby, Guelph
Alberta
Calgary, Edmonton, Red Deer, Lethbridge, St. Albert, Medicine Hat, Grande Prairie, Airdrie, Spruce Grove, Okotoks, Fort Saskatchewan, Lloydminster, Camrose, Wetaskiwin, Cochrane, Chestermere, Leduc, Beaumont, Sherwood Park, Canmore
Nova Scotia
Halifax, Sydney (Cape Breton), Truro, New Glasgow, Glace Bay, Dartmouth, Bridgewater, Yarmouth, Kentville, Amherst, Antigonish, Bedford, Sydney Mines, Windsor, Digby, Berwick, Wolfville, Pictou, Springhill, Stellarton
Yukon
Whitehorse, Dawson City, Watson Lake, Haines Junction, Carmacks, Faro, Mayo, Teslin, Carcross, Old Crow
Quebec
Montreal, Quebec City, Laval, Gatineau, Longueuil, Sherbrooke, Saguenay, Levis, Trois-Rivieres, Terrebonne, Saint-Jean-sur-Richelieu, Repentigny, Brossard, Drummondville, Saint-Jerome, Granby, Blainville, Saint-Hyacinthe, Shawinigan, Dollard-des-Ormeaux
Manitoba
Winnipeg, Brandon, Steinbach, Thompson, Portage la Prairie, Winkler, Selkirk, Morden, Dauphin, The Pas, Flin Flon, Swan River, Neepawa, Virden, Carman, Stonewall, Beausejour, Niverville, Altona, Gimli
New Brunswick
Moncton, Saint John, Fredericton, Dieppe, Riverview, Miramichi, Edmundston, Bathurst, Campbellton, Oromocto, Rothesay, Quispamsis, Sackville, Shediac, Grand Falls, Sussex, Tracadie, Woodstock, Caraquet, Hampton
Northwest Territories
Yellowknife, Hay River, Inuvik, Fort Smith, Behchoko, Fort Simpson, Norman Wells, Tuktoyaktuk, Fort McPherson, Fort Providence
British Columbia
Vancouver, Surrey, Burnaby, Richmond, Abbotsford, Coquitlam, Kelowna, Saanich, Delta, Langley, Kamloops, Nanaimo, Victoria, Chilliwack, Prince George, Vernon, Courtenay, North Vancouver, Maple Ridge, New Westminster
Saskatchewan
Saskatoon, Regina, Prince Albert, Moose Jaw, Swift Current, Yorkton, North Battleford, Estevan, Weyburn, Martensville, Warman, Melfort, Humboldt, Meadow Lake, Melville, Kindersley, Nipawin, Battleford, Tisdale, Lloydminster
Newfoundland and Labrador
St. John's, Mount Pearl, Corner Brook, Conception Bay South, Paradise, Grand Falls-Windsor, Gander, Happy Valley-Goose Bay, Torbay, Portugal Cove-St. Philip's, Labrador City, Stephenville, Carbonear, Bay Roberts, Clarenville, Marystown, Deer Lake, Channel-Port aux Basques
Nunavut
qaluit, Rankin Inlet, Arviat, Baker Lake, Igloolik, Cambridge Bay, Pond Inlet, Kugluktuk, Pangnirtung, Cape Dorset, Gjoa Haven, Taloyoak, Clyde River, Naujaat, Coral Harbour, Kimmirut, Sanikiluaq, Whale Cove, Chesterfield Inlet, Grise Fiord
Prince Edward Island
Charlottetown, Summerside, Stratford, Cornwall, Montague, Kensington, Souris, Alberton, Georgetown, Tignish
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.
