06/03/2026
THE SECRET WEAPON IS IN THE FORMULA.
MOLYBDENUM DOESN’T BABYSIT METAL. IT PROTECTS IT.
Here’s why CONVOY® 15W-40 CK-4 is more than just another diesel oil.
It contains molybdenum, a friction modifier designed to help improve performance and efficiency. In plain English: when metal is under pressure, heat, and constant movement, friction is the enemy — and molybdenum helps fight that battle inside the engine.
Pair that with Convoy’s parasynthetic formula, enhanced shear stability, thermal and oxidation stability, soot control, and protection against wear and corrosion, and you’ve got a diesel oil built for engines that don’t get pampered.
Because your truck doesn’t need motivational quotes.
It needs oil that can take a beating.
Run CONVOY® 15W-40 CK-4 and put serious friction protection to work. Contact your Conklin Distributor today.