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Heavy-Duty Parasynthetic Motor Oil
PRODUCT INFORMATION
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.
PRODUCT FEATURES
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Enhanced shear stability
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Superior friction reduction – improved efficiency
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Protection against wear and corrosion
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Long-life oil for extended drain intervals (with oil analysis)
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Improved reduced sludge and varnish formation
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Superior thermal and oxidation stability
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Excellent soot control and acid neutralization
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Greater aeration control
We ship most orders within 1-3 business days via UPS or FedEx. Delivery times vary by location, typically 5-10 business days for standard shipping.
Shipping Rates
Shipping costs are calculated at checkout based on weight and destination. Free shipping may be available on select orders.
Hazmat Notice
Some products (chemicals, coatings, solvents) ship as hazardous materials and may have additional shipping fees or restrictions.
Returns & Refunds
We want you to be completely satisfied with your purchase. If you are not satisfied, you may return unused products in original packaging within 30 days of delivery for a refund.
To initiate a return, please contact us at support@jaceindustries.com or call 878-444-0499.
Refunds are processed within 5-7 business days after we receive the returned item.
