T & C 3.8 liter dripping oil

05 minivan dripping too much oil. 150K mi. Drip is hanging from bottom of oil filter, but I cant see where its coming from. So I changed oil and filter, wiped everything clean. Snugged oil pan bolts which werent loose at all. Next day, drip, drip, drip...

Looks like I could replace oil pan gasket. Are these prone to leaking there or where else to look?

Tanks.

Look at the op switch.Ive seen them just barely leak.Never had any real problem with the pans.Rocky

Pardon my ignorance, whats an op switch and where is it located?

Thanks Rocky

Oil pressure switch.

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Pardon my ignorance, whats an op switch and where is it located?

Thanks Rocky

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The OP Oil pressure sending unit is right next to the oil filter they can often leak into the wire conector and drip out on the ground.