1 Turbo Diesel Truck Full Synthetic Motor Oil 5W-40, 1 Gal

The oil made my 4N15 turbo diesel much quieter than Amsoil 5w30 Max Duty. It is running much smoother than before. I have also tried Hot Shot Secret 10w-40, but Mobil 1 felt much smoother and quieter and is much cheaper. I will be ordering again.

I began a bit hesitant with this oil since it is named turbo Diesel Truck, I was already using Shell Rotella Synthetic which is also good. However, the more I used this TD Truck of Mobil , the more confidence it gave me , why? It is for Mixed fleets( it has all certifications), I even used it in my Generac, 14KWH stand by Generator, Two Oil changes and it is working like a charm, Smaller engines rotate faster than large ones breaking down OIL a lot faster, but this one has taken heavy usage( up to 9 hours non stop of power outage for several times very well) and in my truck and SUV 8,000 Miles Easy without breaking down. It may even do more, but Diesel combustion is not the cleanest on earth, on Gasoline engines I am sure it can withstand 10,000 Miles without a problem...I am staying with this oil , works extremely well, just one OIL in all lubricant needs is simple, and gives me peace of mind since I have tested it over a year now and has proven to be a multi application , High Quality, work horse...Cheers!

Great oil for my diesel engine

Mobil 1 Turbo Diesel Truck Full Synthetic Motor Oil 5W-40 is a premium choice for those looking to extend the life and performance of their diesel engines. This oil stands out for its exceptional ability to protect against wear, even in extreme conditions, making it ideal for heavy-duty trucks and high-performance vehicles. The full synthetic formulation ensures excellent thermal and oxidation stability, which means it resists breakdown at high temperatures, providing consistent protection throughout its use. One of the key benefits is its outstanding ability to keep engines clean by minimizing sludge and deposit formation, which is crucial for maintaining efficiency and longevity. It also offers excellent low-temperature performance, ensuring quick starts and effective lubrication in cold conditions. Users report noticeable improvements in engine smoothness and reduced noise, alongside extended oil change intervals, which can be both convenient and cost-effective. Whether you’re using it in a turbocharged truck or a high-mileage diesel vehicle, Mobil 1 Turbo Diesel Truck 5W-40 provides the reliability and performance needed to keep your engine running at its best. Overall, this motor oil is a solid investment for those who demand durability and efficiency in their diesel engines.

I wouldn't expect any less from a Mobil 1 product

Very pleased exactly as as expected;

not for small diesel engines in my opinion. I used in my MB Sprinter 2.1 diesel engine after 1500 miles I have to add 1 quart of oil. Changed oil and replaced with other high quality oil and drove 2500 miles, no oil use. That's is my experience.

Good oil