After changing my oil to synthetic, now there is an oil leak near the plug.
This generally indicates a failure of the oil plug crush washer/gasket. Retorquing the plug may stop the leak. If not, the oil plug and gasket need to be checked. If the oil is rather new, it can be reclaimed in a clean drain pan and reused. You may want to enlist the help of a mechanic, like one from YourMechanic, who has the proper tools and training, to safely torque and reclaim the oil to repair this leak.
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