Constant oil drip at drain plug - Mazda 6 Forums : Mazda 6 Forum / Mazda Atenza Forum
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post #1 of 6 (permalink) Old 04-18-2016, 08:21 AM Thread Starter
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Constant oil drip at drain plug

Good morning, all.

I am suffering from a constant oil drip coming from the drain plug of my wife's 2010 6. The vehicle has 69,500 miles on it. It had approximately 55,000 on it when we purchased it. I've changed the oil three times since.

I have replaced the drain plug (OEM) twice thinking it was the rubber gasket. I have used the recommended torque of 20 to 30 ft. pounds (first 20, then 30 both times) but, it still leaves a dime to quarter sized spot on my garage floor every evening after driving home.

I even took it to have the oil changed by (OEM filter and Mobil 1 5w20, of course) a "professional" and still the same result.

I am at my wit's end and am just about ready to give up on the car (in one year of owning it we have had to replace the steering wheel position sensor housing, both headlights and fog lights, deal with a nasty pop/rattle in the passenger seat that only happens when someone is sitting in it while driving), and now this pita.

I'm thinking of installing an over-sized plug or a Fumoto valve-anything to get this thing to stop leaking onto my garage floor.

Sorry for the rant and thank you in advance.
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post #2 of 6 (permalink) Old 04-18-2016, 08:49 AM
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Remove plug (obviously will drain the oil.)

Check the surface of the pan on which the gasket seals. I bet you'll find that it, or the surface of the plug, has some corrosion or other imperfection. Remove it and then re-install with a new gasket.
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post #3 of 6 (permalink) Old 04-18-2016, 03:36 PM Thread Starter
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Will try that next. Thinking emery cloth for the aluminum pan.

Thank you.
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post #4 of 6 (permalink) Old 04-20-2016, 07:47 AM Thread Starter
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Did that and the leak at the plug stopped.

Unfortunately, there is another leak above that draining down to the plug location.

I've about had it with this thing.

Thanks again.
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post #5 of 6 (permalink) Old 04-27-2016, 10:49 AM Thread Starter
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Yup.

Timing cover leaking. Can't even bring myself to type how much the estimate is.

This vehicle has been at best a huge disappointment and at worst a rotten lemon.

Good luck to you all-I wish you nothing but the best with your vehicles as this will be the last Mazda product that will ever call my garage home.
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post #6 of 6 (permalink) Old 04-27-2016, 01:08 PM
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Sounds like you got a car that someone didn't take good care of. Sorry to hear that. I went through something similar with my last BMW. That car drove me and my bank account into madness.

I guess the bright side is that parts for these cars are stupid cheap (comparably). I don't know how mechanically inclined you are, but I'm sure the 2nd gen guys on here could help you through the repair to save some $$$.

ENGINE PARTS for 2010 Mazda 6
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