Mowers & four-stroke engines
Identify the engine model, required viscosity, capacity and service schedule. The engine brand may differ from the mower brand.
Shop four-stroke equipment oilBuy AMSOIL for the vehicles and equipment your business operates. A commercial account is for eligible businesses purchasing for their own use, with dealer support to help connect product questions, equipment needs and the official account process.
Synthetic Oil Depot · Independent AMSOIL Dealer #5573391
Spokane, WA · Personal help from Trey Campo
Start with the machines, components and operating conditions that matter to your work. Confirm each application before choosing a product.
AMSOIL offers commercial purchasing and volume programs. Current qualifications and account terms determine the benefits available.
Work with an independent dealer and use AMSOIL corporate technical resources for product and program questions.
Lawn care & grounds maintenance
Mowers, handheld tools and work trucks each have a job to do—and their own service requirements. Build a clear product list for your operation, so your next order starts with what each machine actually needs.
Experience from the equipment side of the business.
Before becoming an AMSOIL dealer, I used AMSOIL for more than 10 years in my personal vehicles and equipment and throughout the commercial lawn-care equipment in my grounds-maintenance business.
— Trey Campo, Synthetic Oil Depot
Use these product categories to explore your options. Match the engine or component specification before choosing a product.
Identify the engine model, required viscosity, capacity and service schedule. The engine brand may differ from the mower brand.
Shop four-stroke equipment oilCheck the engine’s lubrication method and required oil. Follow the applicable mixing or injection instructions.
Shop two-stroke equipment oilIdentify the transmission model and its fluid requirements separately from the engine. Check the exact product’s listed applications.
Explore hydrostatic transmission fluidCheck the engine and emissions-system requirements. Keep truck and equipment service records with your maintenance list.
Shop diesel engine oilConfirm filter fitment and the lubricant required at each service point. Include these items when preparing the job.
Open application & filter guidesExplore grease productsChoose fuel-treatment products for the intended use. Check fuel compatibility, treatment rate and storage instructions.
Explore gasoline fuel additivesFor each machine, gather these details before calling Trey or placing an order:
A photo of the model plate and the relevant manual page can help you prepare. Use a separate record when machines have different requirements.
Review each machine’s service record and manufacturer checklist. Identify due maintenance, confirm the products and filters needed, and prepare your order before scheduling the work.
Track hours or mileage and completed service. Follow the specified checks and intervals for each machine and its operating conditions. Keep product and service details available for the next person maintaining it.
Follow the equipment maker’s storage and return-to-service instructions. Review fuel handling and any treatment directions, record completed work, and note what needs attention before the equipment returns to use.
Read the seasonal equipment guide
AMSOIL identifies lawn and landscape contractors among the businesses served by its commercial program. Explore an account for products used in your company’s equipment. If you sell products or install them for customers, review retail and installer accounts. AMSOIL determines eligibility and account terms.
Also buying for a fleet, construction operation or other business? The commercial information below applies beyond lawn care. Review the official AMSOIL commercial program.
AMSOIL’s commercial program serves operations such as regional fleets, construction and excavation contractors, agriculture, and lawn and landscape businesses. The key distinction is use: these products go into your company’s equipment.
If you sell products or install them for customers, begin with retail and installer accounts instead.
A busy operation can have trucks, small engines and specialized machinery working side by side. Similar-looking containers do not mean interchangeable fluids. A simple equipment record makes the product conversation more useful.
Use that record to organize your next maintenance discussion and purchasing decisions.
AMSOIL’s commercial information states that there are no buying minimums. Volume discounts depend on qualifying purchases. Shipping benefits carry thresholds and exclusions; confirm your order details with AMSOIL.
Package sizes vary by product. Discuss the sizes that fit your storage, handling and usage rather than assuming bulk is the right choice for every application.
Approval and account terms are controlled by AMSOIL. An inquiry to Trey does not create an account.
Yes, lawn and landscape contractors are among the business types AMSOIL identifies for the commercial program. Eligibility still depends on the current application requirements.
No. An account does not change an engine’s requirements. Follow the equipment manufacturer and exact product guidance, with technical advice where appropriate.
Only when every covered application meets the required specifications and product guidance. Do not assume a mixed fleet can use one fluid.
No. Costs and equipment outcomes depend on the application, operating conditions and maintenance practices. Evaluate changes against your own records.
Tell AMSOIL how each part of your business uses the products so it can clarify the appropriate account arrangements.
Have a question before you commit? Talk with Trey Campo at Synthetic Oil Depot. Bring your vehicle, equipment or business details and the decision you want help making.
Based in Spokane, supporting customers in the Inland Northwest and across the U.S.
Start your commercial application, or bring your equipment list to Trey and work through the questions first.
Official information reviewed October 17, 2026. Current AMSOIL terms govern eligibility, fees, benefits and approval.
Synthetic Oil Depot is an independent AMSOIL dealership. Trey may receive compensation from qualifying purchases or enrollments associated with this dealership. AMSOIL handles official enrollment and checkout.
Independent AMSOIL Dealer #5573391
Trey Campo · Spokane, Washington
Serving drivers and businesses in the Inland Northwest and across the U.S.
I’m Trey Campo, the owner and sole operator of Synthetic Oil Depot, Independent AMSOIL Dealer #5573391. I personally provide product and account guidance. Purchases and official enrollment are completed through AMSOIL. I may earn compensation from qualifying purchases and enrollments associated with my dealership.