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What Causes Spikes in Oil Pressure?
 
Ask Your Stickiest Question. . . Or ask us something you’ve always wanted to know about using our products. We’ll sort through all the submissions and present the best questions to our automotive experts. We'll share the questions and their answers here.
Question:
What Causes Spikes in Oil Pressure?
Why do we see spikes in the automotive gasoline engine lubrication oil pressure during cold weather?
-- Abhi Gul, Troy, MI
Answer:
If referring to the initial oil pressure at start-up, this is because the oil has thickened overnight, and pressure will likely not be in steady until the oil reaches normal operating temperature. Synthetic oils, which have a better response to both low and high temperatures, will generally provide a more consistent oil pressure more quickly than conventional oils.
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