What is 15W-40 Motor Oil?: A Comprehensive Guide to Engine Lubrication
15W-40 motor oil is a common viscosity grade for diesel engine oil, typically used in cold climates. It offers excellent soot dispersancy and wear control while providing outstanding wear protection. Semi-synthetic oil, like 15W-40, sits in between mineral oil and fully synthetic oil in terms of affordability and performance. It is formulated using high […]
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