Recently changed my oil in my m20 3 days ago, noticed once I rev the car past 4-5k I got a cloud of blue smoke, not much but you can tell. Car just got swapped and had 10-40w in it and it never did that. Any thought on what it could be? I used a mahle filter and valvoline vr1 20-50 from autozone used 4.5 bottle of it. Oil lever on dipstick seems fine
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