05/30/2026
Longevity
Durability
World Records
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DON’T FEED YOUR DIESEL CHEAP OIL.
HEAT. LOAD. GRIT. CONVOY DOESN’T FLINCH.
Your diesel doesn’t live an easy life.
Heavy loads. Hot runs. Long hours. Dust. Stop-and-go punishment. Cold starts. Hard pulls.
That’s exactly why CONVOY® 15W-40 CK-4 exists.
Built for diesel engines with or without exhaust aftertreatment systems, Convoy delivers serious protection against wear, corrosion, sludge, varnish, soot, oxidation, and heat stress — while helping reduce friction for improved efficiency.
This is not “whatever’s on sale” oil.
This is protection with backbone.
Ask your Conklin Distributor for CONVOY® 15W-40 CK-4 before your next oil change. Your engine will know the difference.
