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From the manufacturer
About Schaeffer's Oil
At Schaeffer’s Oil, we’re passionate about providing specialized lubricants that allow your equipment and vehicles to last longer, and cost less to maintain. We’re a 6th generation, family-owned, American company that was founded in St. Louis, MO in 1839.
Full synthetic 5w40 engine oil by Schaeffer's Oil
Excellent cold cranking and oil pumpability
In cold weather, Schaeffer’s Supreme 9000 Full Synthetic Oil 5w40 flows easily and resists thickening, providing optimum wear protection your engine needs at startup.
Fuel economy benefits
Schaeffer’s synthetic oils are routinely tested each year, and the results consistently show Supreme 9000 Full Synthetic Oil 5w40 delivers real savings you can count on.
- Meets and exceeds API CJ-4 (API license no. 0032).
- Exceptional low volatility characteristics to control oil consumption.
- Improved protection against oxidative thickening.
- Rapid circulation and excellent pumpability.
- Reduced oil ageing.
- A high viscosity index.
- A low coefficient of friction.
- Enhanced detergency and dispercency to protect against soot overloading.
Enhanced engine cleanliness
Our 5w40 fully synthetic engine oil suppresses deposits, sludge and varnish from forming on critical engine components. This keep-clean performance allows for better oil flow and engine performance and longer oil life.
Reduces engine wear
Our fully synthetic Supreme 9000 5w40 Oil significantly reduces friction and provides long-lasting anti-wear protection. Engine components move smoothly against each other, preserving engine durability, efficiency and performance.
Strong high temperature, high shear protection
Our fully synthetic Supreme 9000 5w40 Oil resists thinning at high temperature, and provides the proper viscosity needed during high load and severe service applications. Schaeffer’s diesel oil is highly durable and is capable of withstanding a higher heat range – up to 300° – than conventional oil.
Strong oxidation and thermal stability
In higher operating temperatures, Schaeffer’s Supreme 9000 Full Synthetic Oil 5w40 resists breaking down and maintains performance over the life of the oil. Supreme 9000 5w40 Engine Oil delivers exceptional thermal stability, which prevents high temperature engine deposits from forming.
Returns Policy
You may return most new, unopened items within 30 days of delivery for a full refund. We'll also pay the return shipping costs if the return is a result of our error (you received an incorrect or defective item, etc.).
You should expect to receive your refund within four weeks of giving your package to the return shipper, however, in many cases you will receive a refund more quickly. This time period includes the transit time for us to receive your return from the shipper (5 to 10 business days), the time it takes us to process your return once we receive it (3 to 5 business days), and the time it takes your bank to process our refund request (5 to 10 business days).
If you need to return an item, simply login to your account, view the order using the 'Complete Orders' link under the My Account menu and click the Return Item(s) button. We'll notify you via e-mail of your refund once we've received and processed the returned item.
Shipping
We can ship to virtually any address in the world. Note that there are restrictions on some products, and some products cannot be shipped to international destinations.
When you place an order, we will estimate shipping and delivery dates for you based on the availability of your items and the shipping options you choose. Depending on the shipping provider you choose, shipping date estimates may appear on the shipping quotes page.
Please also note that the shipping rates for many items we sell are weight-based. The weight of any such item can be found on its detail page. To reflect the policies of the shipping companies we use, all weights will be rounded up to the next full pound.
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