Welcome Offer : Use Code WELCOME5 for 5% OFF!
Free Shipping on Most USA Orders
Welcome Offer : Use Code WELCOME5 for 5% OFF!
Free Shipping on Most USA Orders
Welcome Offer : Use Code WELCOME5 for 5% OFF!
Free Shipping on Most USA Orders
Welcome Offer : Use Code WELCOME5 for 5% OFF!
Free Shipping on Most USA Orders
Welcome Offer : Use Code WELCOME5 for 5% OFF!
Free Shipping on Most USA Orders
Welcome Offer : Use Code WELCOME5 for 5% OFF!
Free Shipping on Most USA Orders
Welcome Offer : Use Code WELCOME5 for 5% OFF!
Free Shipping on Most USA Orders
Welcome Offer : Use Code WELCOME5 for 5% OFF!
Free Shipping on Most USA Orders
Welcome Offer : Use Code WELCOME5 for 5% OFF!
Free Shipping on Most USA Orders
Welcome Offer : Use Code WELCOME5 for 5% OFF!
Free Shipping on Most USA Orders
⚠️ California Proposition 65 Warning : Some products sold on this website may expose you to chemicals known to the State of California to cause cancer, birth defects, or other reproductive harm.
For more information, visit www.P65Warnings.ca.gov.
Duralec Super Diesel Motor Oil is a high performance synthetic engine oil made for those diesel engines requiring the use of an emissions compliant oil for the 2007 and 2010 emissions equipment such as: DPFs, Catalytic Converters, EGR, and SCR injection with the ultra-low sulfur diesel fuels found in North America and Europe. Duralec Super motor oil is specifically formulated to maximize component life, extend drain intervals and improve fuel performance with excellent high temperature break down resistance and low temperature pumpability to minimize cold-induced startup wear. A quality lubricant, such as Duralec Super, protects against cylinder liner and piston ring wear ensuring compression maintenance, engine power, and vehicle efficiency. Poor scuffing protection leads to adhesive wear on cylinder liners and rings. This results in blowby, loss of compression, power loss and increased fuel consumption. Royal Purples formulators have more than 200 years of expertise in developing high performance lubricants. Royal Purple focuses exclusively on developing state-of-the-art lubricants. Unlike companies that primarily focus on fuel and other petroleum byproducts, Royal Purples sole mission is to develop products that significantly outperform other synthetic and mineral based oils. Royal Purple is very active in the lubricant industry and its related associations.
The Royal Purple 15W40 does its job well, keeping my diesel engine happy and running smoothly. However, it took a week longer than expected to arrive. I was worried I might run out before it got here!
C
Carlos Mendoza
Great oil for my old truck!
I've been using Royal Purple 15W40 in my 1995 Ford F-250 for a few months now. The engine runs smoother, and it really handles the heat during summer driving. This oil has made a noticeable difference in performance and I love the purple color too!
S
Samir Patel
Arrived damaged, not happy
Unfortunately, my bottle of Royal Purple 15W40 arrived with a dent and some oil had leaked out. I contacted customer service, but it took a while to get a response. The product itself seems fine, but I expected better packaging.
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FAQs
Have a question ? We are here to help.
Is the shipping free?
Yes, we offer free standard shipping on all orders within the United States.
When will I receive my item?
Domestic orders typically arrive within 3-5 business days. Delivery times are estimated and may vary depending on your location, weather conditions, or other unforeseen factors.
Can I change or return my item?
We hope you love your purchase, but if you need to make a change or return your item, we’ve got you covered! You can initiate a return or exchange within 30 days of receiving your order. Please ensure the product is in its original condition and packaging. For more information on our return policy, please visit our Returns & Exchanges page.
