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D&J Precision Machine X Hot Shot’s Secret

Motortopia Staff . August 11, 2025 . Press Release
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New Oil Change Kits for Your Cummins

Take the guesswork out of your next oil change.

D&J’s new Oil Change Kits for 5.9L and 6.7L Cummins engines pair premium Hot Shot’s Secret oil with a genuine Fleetguard filter, giving you everything you need in one convenient package. Whether you’re after long-haul durability, daily driving reliability, or race-ready protection, we’ve got a kit built for your application.

Choose From:

EVERYDAY RELIABILITY

Green Diamond Semi-Synthetic or Full Synthetic for clean emissions and dependable protection. 

SEVERE-DUTY PROTECTION

Blue Diamond Full Synthetic for extended intervals and high-demand conditions.

HIGH-PERFORMANCE BUILDS

Black Diamond and Adrenaline Series oils for extreme power, protection, and racing environments.

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