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.
From farm and construction equipment to on-highway fleets, heavy workloads and hauling, Valvoline Heavy Duty Diesel Synthetic Blend 15W-40 Engine Oil is specially formulated with targeted additive technology for engines operating in extreme duty cycles or severe environmental contamination conditions. Proven to maximize diesel engine life, our latest heavy duty diesel synthetic blend lubricant is engineered to control wear, deposits and oil breakdown while providing enhanced viscosity and oxidation stability. No matter the weather, you can count on excellent year-round performance in Cummins, Volvo, Mack, Ford, Caterpillar, Detroit Diesel engines and more. For superior wear protection in harsh environments and extreme applications, trust Valvoline Heavy Duty Diesel Synthetic Blend 15W-40 Engine Oil to keep your vehicles working as hard as you do.
I had high hopes for this Valvoline oil based on the reviews, but my engine started making noise after using it. Not sure if it’s a compatibility issue or what, but I’m switching brands. Disappointed!
C
Carlos Ramirez
Great Oil for My Truck
I've been using Valvoline's synthetic blend in my diesel truck for a few months now, and it's running like a dream. The 15W-40 viscosity is perfect for the colder months, and I love that it comes in a 2.5-gallon case. Definitely worth the investment!
L
Linda Chen
Solid Performance but Pricey
This oil works well for my old diesel engine, but I found it to be a bit expensive compared to other options. The synthetic blend holds up under heavy loads, but I wish it was more cost-effective. Still, it does the job nicely!
M
Mike Anderson
Perfect for Heavy Duty Work
Using this oil in my work truck has been great. It withstands the heavy lifting and long drives without missing a beat. Plus, the 2.5-gallon case is just right for my needs. Would buy again!
P
Priya Singh
Decent Oil, Slow Delivery
I like the Valvoline oil, but it took longer than expected to arrive. The quality is good, and it keeps my diesel engine happy, but the delivery delay was a bit frustrating. Just plan ahead if you need it fast!
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.
