Rick's Free Auto Repair Advice

Posts Tagged: thicker oil

Thicker oil

Should you use thicker oil? Lots of forum users ask if they should use a thicker oil in warmer climates or use thicker oil to fix low oil pressure. The answer is NO. Engine designers specify a certain oil viscosity for a reason and it’s based on bearing clearances, engine cooling needs, oil pump capacity, fuel pump needs, and valve timing mechanisms. The second you change to a thicker oil to fix low oil pressure you impact the operation of the engine. What happens when you use a thicker oil … Read More


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