Valvoline 774038 Premium Blue Extreme 5W-40 Synthetic Diesel Oil, 3 Gallon, 3 Pack

Valvoline Premium Blue Extreme SAE 5W-40 Full Synthetic is a high-performance engine oil specifically formulated for diesel engines, offering exceptional protection and performance. Here's a detailed review highlighting its key features and benefits:### Key Features**1. Full Synthetic Formula:** Made from premium synthetic base oils, Valvoline Premium Blue Extreme 5W-40 provides superior protection against engine wear, oxidation, and thermal breakdown compared to conventional oils.**2. Engine Protection:** Designed to meet the demanding requirements of modern diesel engines, it offers excellent lubrication at high temperatures and maintains consistent viscosity under various operating conditions.**3. Enhanced Fuel Efficiency:** The advanced formulation of Valvoline Premium Blue Extreme helps improve fuel efficiency by reducing internal friction, which contributes to lower operating costs over time.**4. Cold Weather Performance:** Offers excellent cold-start capabilities, ensuring quick oil circulation and protection during cold weather conditions, which is crucial for diesel engines operating in diverse climates.**5. Long Drain Intervals:** Suitable for extended drain intervals as recommended by engine manufacturers, providing convenience and cost savings for fleet and heavy-duty vehicle owners.### PerformanceUsers appreciate Valvoline Premium Blue Extreme SAE 5W-40 Full Synthetic for its reliability, performance under extreme conditions, and compatibility with a wide range of diesel engines. It is particularly favored for its ability to protect engines from wear, maintain cleanliness, and extend oil change intervals.### Pros and Cons**Pros:**- Full synthetic formulation for superior engine protection- Excellent performance in high temperatures and cold weather- Enhances fuel efficiency- Long drain intervals reduce maintenance costs- Trusted brand with a reputation for quality**Cons:**- Higher initial cost compared to conventional oils- Specific formulation tailored for diesel engines, not suitable for gasoline engines### ConclusionValvoline Premium Blue Extreme SAE 5W-40 Full Synthetic is an excellent choice for diesel engine owners seeking premium performance and protection. Its advanced synthetic formulation, coupled with enhanced fuel efficiency benefits and long-lasting durability, makes it a preferred oil among fleet operators, heavy-duty truck drivers, and diesel enthusiasts looking to optimize engine performance and longevity.

Valvoline is the best

Great purchase and value if you have a diesel especially a Cummins. First oil change was done with Shell Rotella T6, which gave me no issues. But I don't drive my truck a lot so occasionally after sitting it would be a lil noisy on startup. With this oil my trick can sit for a month and have zero noise on startup which is great if you know anything about the noise some of these Cummins make or diesels in general. Performs great as I have no oil loss when conducting visual and mechanical checks of my truck. Like all oil changes it's pretty straight forward and easy to utilize. Definitely will purchase again when needed.

after looking at some of the reviews i was skeptical about purchasing from this seller but this specific diesel oil was significantly less than what i could buy it for from other sellers on amazon or even at my cost at the dealer i work for. the oil came in two days like advertised and was packaged well; unfortunately one of the gallons had a manufacturing defect and the cap wasn't all the way on causing a good amount of oil to spill into the box containing all three gallons. i reached out to the seller with a couple pictures of the box and oil level in the jug. i was messaged back within an hour that they would replace the one gallon. i had a tracking number for the new gallon by the end of the day and to my surprise i also had the new gallon come in the mail that very next day. extremely satisfied with the customer service from the seller.is

Endorsed by Cummins.