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Mine was in today. They claimed it was 3qts of oil low. Now it's scheduled to be back in next week for them to pull the plugs and check each cylinder with the bore scope.

Update as of today.... Explorer is going back in for some "diagnostic" on Monday of next week. First step is to check the PCV system for signs of trouble there. They will also be looking into the intake to see if there's any pooling of oil. Depending on what they find, it could be a PCV valve...

@TMac Yeah, the smoke is ALWAYS immediately after startup and then clears up after a few seconds. My wife primarily drives the Explorer and she's driving primarily short trips (at least 30min), but long enough for it to get to full operating temp. I've never once seen it smoke unless it...

I've got the same issue with mine. It's a 2021 ST that was built in Sept. of 2021. - only 9K miles on it. The smoke varies in intensity depending on the day, but it's blue-colored and smells like burning oil to me. Always heaviest from the drivers side muffler. I've been to two different dealers...