I have a 2011 mazda tribute. 148,500 miles. Run standard 5w-20 oil. After the engine has run for a while (25mins plus) the oil pressure light begins to flicker when idling. When I accelerate the oil light goes off. So, it appears that when the oil warms up and thins out the pressure drops. When it is idling the pressure drops but when up to speed the pressure rises. I just had a fresh oil change one week ago, so it shouldn't be bad oil or a bad filter. What are some troubleshooting possibilities in order of liklihood?
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Sorry, it's a 2001 not a 2011.
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