Are you looking for the highest quality motor oils and grease for your vehicles and equipment? The Synthetic Oil Depot is here to help you solve your oil and grease problems. We provide you with premium AMSOIL synthetic motor oils, gear lubes and other lubrication products for taking care of your vehicles, equipment and toys. The Synthetic Oil Depot wants you to Join The Millions of proud AMSOIL users to experience the difference.
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Get Your Diesel Oil
Buy AMSOIL Diesel Oils
Developed to protect the horsepower diesel enthusiasts crave and extend the life of hard-working commercial equipment in the most severe conditions. Signature Series synthetic technology delivers max-duty protection in on- and off-road applications.
Buy AMSOIL Small Engine Oils
Delivers commercial-grade protection for lawn mower engines and other small engines. Outperforms conventional oils. Tough formulation protects against wear, heat and carbon deposits. Helps maintain power and promotes long engine life. Specifically designed for maximum equipment dependability. Service life up to 200 hours.
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AMSOIL QUICKSHOT® GASOLINE TREATMENT AND STABILIZER
- Cleans powersports fuel systems
- Addresses ethanol-related performance issues
- Stabilizes fuel during short-term storage
AMSOIL Severe Gear 75w-140
- Advanced protection against wear
- Controls thermal runaway
- Protects against rust and corrosion
- Helps reduce operating temperatures
- Long oil, seal & equipment life
- Contains friction modifiers for limited-slip applications
AMSOIL 5W-30 100% SYNTHETIC HIGH-MILEAGE MOTOR OIL
- Unique chemistry for vehicles with over 75,000 miles
- Enhanced anti-wear additives
- Guaranteed Protection For 12,000 Miles/1-Year1
- API Licensed
AMSOIL DOMINATOR® 100% SYNTHETIC 2-STROKE RACING OIL
- Excellent film strength for high-heat, high-rpm engines
- Anti-friction formula for maximum power
- Burns clean; helps prevent ring sticking and plug fouling
- Protects coated and non-coated racing pistons
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Use in Company Equipment
Reduce Maintenance Costs
Maximize Equipment Life
Extensive Product Line
Personalized Service
Pricing Discounts Based on purchase Volume
Sell Retail / Install in Your Shop
Increase Sales
Robust Product Line
No contracts
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Fast free shipping on orders over $400
Save Money as a Preferred Customer
$10 for 6 month Trial Membership
1 Year membership for $20
Save up to 25% on products
Earn a $5 coupon for every $100 Spent
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Free membership renewal if you spend $500 annually
Why Use AMSOIL Synthetic Motor Oil ?
The Synthetic Oil Depot is a local AMSOIL dealer serving the Spokane, Washington, Post Falls, Idaho and the Coeur D'Alene, Idaho area. We also help customers across the United States.
Why AMSOIL Synthetics
Since 1972, AMSOIL Synthetic Motor Oil products have provided cutting edge, benchmark setting, quality performance recognized by many. These same motorists, sports / recreation enthusiasts, racers, boaters, farmers, ranchers, business owners, fleet owners and industrial managers know AMSOIL as the most cost-effective choice for increasing engine and equipment performance. While being the cost effective solution, AMSOIL helps reduce maintenance costs and Protects the environment while extending vehicle and equipment life.
AMSOIL develops and produces the widest selection of the highest quality premium synthetic lubricants for your car, truck, motorcycle, boat, four-wheeler, snowmobile, lawnmower, 2 stroke equipment and anything else with an engine or needing lubrication. AMSOIL Synthetic Motor oils are designed to help your equipment run at peak efficiency, disperse heat better, resist sludge formation, continually clean your engine and reduce “cold start” wear.
The extraordinary performance of AMSOIL synthetic lubricants in a wide range of markets – has made their influence on the industry unmistakable and the brand highly respected. Their commitment to innovation has resulted in legions of brand-loyal customers across the U.S. and Canada. Currently AMSOIL is factory fill in over 50% of the Wind Energy Turbine Gearboxes worldwide and that number is increasing.
To help further protect your investments, development and production of AMSOIL’s own lines of synthetic oil filters, Air filters, oil by-pass filtration systems, coolant, gun cleaner and other performance products is a priority. They also partner with WIX, MANN and Donaldson to provide complete filter solutions to customers.
Legal Information
This site is owned and operated by the Synthetic Oil Depot. The Synthetic Oil Depot is located in Spokane, Washington and is an Authorized Independent AMSOIL Dealer. As an Independent Small Business, we sell premium AMSOIL motor oil, fuel additives, other performance products and also use affiliate links to other products we use. We advise you to consult your owners manual for proper fluid recommendations and to consult the appropriate repair manual for proper maintenance procedures and specs. Follow all appropriate safety practices. We are not responsible for misuse of products.