The Ultimate Cummins Oil Change Guide for Maximum Horsepower & Wear Protection

If you own a 5.9L or 6.7L Cummins, you know these engines are built for reliability. But for truck owners who an excellent Cummins oil change is non-negotiable. Whether you're hitting the track, pulling heavy loads, or pushing your diesel to its limit, stock maintenance products don't always make the cut. The harder you run your truck, the more protection your engine demands.

At D&J Precision Machine, we understand the science behind keeping a Cummins healthy. That’s why we’ve built the ultimate oil change package from Hot Shot’s Secret, the Cummins Oil Change Package featuring Hot Shot’s Secret Black Diamond Outlaw Full Synthetic.

What’s Inside the Kit?

We’ve taken the guesswork out of your next service interval. Each package includes:

• 3 Gallons of Hot Shot’s Secret Black Diamond Outlaw Full Synthetic 15W-40 Oil
• 1 Premium Cummins Fleetguard LF3972 Oil Filter

By pairing the world’s most advanced synthetic oil with an OEM-grade Fleetguard filter, you ensure maximum cleanliness, optimal filtration, and unmatched engine longevity.

The Black Diamond Outlaw Difference

This isn’t your average oil change. Black Diamond Outlaw 15W-40 is a 100% pure poly-α-olefin (PAO) Group IV synthetic oil. Because of its elite formulation, it requires very few viscosity improvers to meet weight specs, meaning it won’t shear under pressure. Here is what makes it stand out:

1. Infused with FR3 Nano Technology: Hot Shot’s Secret infuses this oil with their patented FR3 Friction Reducer®. This advanced technology builds a protective barrier between moving parts, drastically reducing metal-on-metal contact, lowering operating temperatures, and extending the lifespan of vital components like your pistons, bearings, and camshaft.
2. Unmatched Zinc & Antimony Levels: This blend features an increased Total Base Number (TBN) of 14 and extreme pressure additives, boasting nearly 3 times the zinc levels mandated by standard API CK-4 oils.
3. Proven Dyno Performance: Thanks to reduced friction and superior aeration control, this oil can improve your fuel economy and horsepower by up to 3%.

More Than Just Oil: The Full Hot Shot's Secret Line

At D&J Precision Machine, we don't just stop at oil changes. We are a proud carrier of a wide variety of Hot Shot’s Secret products. From high-performance fuel additives and stiction eliminators to specialized transmission fluids and gear oils, we carry the full arsenal of products designed to keep your diesel running cooler, cleaner, and longer.

Ready to Protect Your Investment?

Don't settle for mediocre protection when your Cummins deserves the best. Protect your engine components, reduce noise and vibration, and extend your oil change intervals with confidence.

Grab your Cummins Oil Change Package today!