Convoy® 15W-40 CK-4 Motor Oil

Grouped product items
SKU Unit Weight/Size
041842 1 QT, 12 EA
Out of stock
041844 2.5 GAL, 2 EA
Out of stock
041846 55 GAL
Out of stock
041848 220 GAL
Out of stock

Run smoother and longer with Convoy for diesel engines with or without exhaust aftertreatment systems. Convoy 15w-40 CK-4 contains Molybdenum as a frictional modifier for improved performance and efficiency. Meets and exceeds CK-4 and is backwards compatible for CJ-4, CI-4 Plus, CI-4 and CH-4 specifications.

Convoy 15W-40 CK-4 provides protection where the API service category CK-4 engine oil is recommended. 15w-40 CK-4 is backwards compatible to exceed the CJ-4, CI-4 Plus, CI-4 and other diesel engine specifications. The enhanced synthetic and PAO synthetic base oils provide superior all-temperature properties, while the conventional oil gives Convoy its parasynthetic name and provides seal protection for the engine’s entire drain interval.

  • Enhanced shear stability

  • Superior friction reduction – improved efficiency

  • Protection against wear and corrosion

  • Long-life oil for extended drain intervals (with oil analysis)

  • Improved reduced sludge and varnish formation

  • Superior thermal and oxidation stability

  • Excellent soot control and acid neutralization

  • Greater aeration control

Copyright © 2021 Conklin Company Inc. All Rights Reserved.