Drivers who refuse to settle. If you want maximum engine protection, confident cold starts, and oil that keeps its cool in extreme heat, you’re in the right place. We’re your trusted AMSOIL online dealer—for cars, trucks, diesels, bikes, boats, ATVs, and small engines.

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One Supplier. Premium coverage

Premium Fluids for Every Engine

Get 100% synthetic protection for everything you drive, ride, tow, or launch - cars & trucks, motorcycles, ATVs/UTVs, and boats. One Trusted Source. Pro Guidance. Fast Fulfillment.

Motor Oil

Signature proteciton for gas & diesel; OEM-specific viscosities.

ATV/UTV

Wet-clutch copativle; built for heat, dust, & hard pulls.

Marine Oil

2-Stroke & 4-Stroke outboards/inboards with rust defense.

Gear Lube

Differentials, transfer cases, final drives; EP stability.

Transmission Fluid (ATF)

Modern OEM specs, smoother shifs, long drains.

AMSOIL® Performance, Backed by Real Expertise

At Synthetic-Motor-Oil.com, your AMSOIL Independent Dealer, we help you protect engines, boost performance, and simplify maintenance. From daily drivers and diesel trucks to motorcycles, ATVs/UTVs, marine and gear lube—we match you with the right AMSOIL product for how and where you drive, then make ordering and upkeep effortless.

Premium Synthetic Lubricants:

The full AMSOIL line: Signature Series motor oils, diesel oils, gear lube, transmission fluid, powersports & marine. Proven protection, clean running, confident starts.

Right Product. Right Viscosity:

Tell us your vehicle and driving style—we’ll recommend the ideal AMSOIL formulation and quantity so you get the best fit the first time.

Smarter Maintenance:

Simple service schedules with AMSOIL-recommended extended drain intervals to cut downtime and save money—without compromising protection.

Fast, Reliable Delivery:

Secure checkout and quick shipping so you can service on your schedule.

Customer-First Service:

Honest recommendations, responsive help, and products we stand behind. Your satisfaction is our priority on every order.

STILL NOT SURE?

Frequently Asked Questions

Find answers to our most frequently asked questions here.

What AMSOIL oil is right for my vehicle?

Tell us your year/make/model/engine, mileage, climate, and how you drive (towing, short trips, long highway). We’ll match the exact spec (API/ILSAC/OEM) and viscosity, then recommend the best AMSOIL formulation for your goals (long drains, max protection, budget).

Will AMSOIL void my manufacturer’s warranty?

No. Using a brand other than OEM does not void a warranty under the Magnuson–Moss Warranty Act. Use products that meet the required spec in your owner’s manual and keep receipts/service records.

How often can I change oil with AMSOIL?

Follow the product label and your vehicle’s maintenance requirements. Many AMSOIL oils support extended drains (with time/miles limits and severe-service adjustments). For longer intervals or hard use, consider periodic used-oil analysis.

Can I switch to synthetic on a high-mileage engine?

Yes. AMSOIL synthetics are fully compatible with conventional oils and seals. For engines with unknown history or sludge, run a short first interval and monitor for leaks/consumption.

Do I need an engine flush before switching?

Usually no. If maintenance has been irregular or there’s visible sludge, you can use a dedicated flush/cleaner before your first AMSOIL fill, then shorten that first interval.

Can I mix AMSOIL with other oils?

Yes—AMSOIL is compatible with other API-qualified oils. Mixing won’t harm the engine, but it can reduce the performance benefits. For best results, run a full AMSOIL fill.

What oil filter should I use?

For extended protection, use AMSOIL Ea® oil filters (or an OEM-equivalent filter) that matches your application and drain interval. Always replace the filter at each oil change and follow the filter’s service limits.

Do you carry more than engine oil?

Yes. We stock transmission fluids (ATF/DCT/CVT), gear lube, coolant/antifreeze, brake fluid, fuel system cleaners, diesel products, and powersports & marine lubricants—all matched to OEM specs.

How fast is shipping and how do I track it?

Orders are fulfilled through AMSOIL’s U.S./Canada distribution network. Most orders arrive in a few business days depending on location and carrier. You’ll receive order confirmation and tracking by email.

How do Preferred Customer and business accounts work?

Shoppers can join as Preferred Customers for product discounts and other perks. Commercial and retail accounts (fleets, shops, stores) receive wholesale pricing and support. Ask us which account fits your use case and we’ll set it up.

READY TO become a prefered customer?

Get Started Today!

Experience the confidence of driving on high-quality tires and enjoy a safer journey. From reliable tire replacements to expert installations and routine maintenance, our dedicated team is here to ensure your vehicle performs at its best. Book your complimentary tire check today and drive with peace of mind!