Excessive Oil Consumption Question - Acura MDX Forum : Acura MDX SUV Forums
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post #1 of 112 (permalink) Old 04-06-2016, 03:17 PM Thread Starter
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Excessive Oil Consumption Question

my wife has a 2010 MDX, for the last year, it has started burning oil, I believe this a carbon build up issue on the pistons and ring issue allowing oil to burn in the combustion chamber. My question is, has anyone fixed this issue and what was the cost? I am considering trading her car in while it still has value, but would like to find out if there is a fix and how much it will cost. Thanks

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post #2 of 112 (permalink) Old 04-06-2016, 03:22 PM
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How much oil are you using? I usually use about 2/3 -3/4 of a quart between 7500 mile M.I.D. changes.

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post #3 of 112 (permalink) Old 04-06-2016, 03:33 PM Thread Starter
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the add oil light will come on before its time for a oil change so roughly 3 qrts every 7500 miles. This has been an issue for a number of Acura V6's, Honda has extended the warranties for some select Honda models, just curious if anyone has fixed the issue on their own, what is and what the cost is. I'm also aware of the Honda 1 qrt per 1K miles and its absurd, just their way of not taking responsibility of the problem until a judge rules against them.
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post #4 of 112 (permalink) Old 04-06-2016, 03:37 PM Thread Starter
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Gas

Also, we have never used anything but premium gas in this car/
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post #5 of 112 (permalink) Old 04-06-2016, 03:54 PM
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This is fairly common issue on 2010 and up models..but 3q between changes? That is absurd, way too much.
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post #6 of 112 (permalink) Old 04-06-2016, 03:54 PM
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How many miles on your motor?

Did you buy the car used?

What is your OCI and what oil and oil weight have you used?

Did you check the PCV system?

Did you check the coolant to make sure none of it is going there?

Did you notice any unusual smoking either when you start the car for the first time or when you gun it?

Have you checked for any leaks or weeps on the bottom of the car?

Where do you live and is the vehicle garaged?

Have you done any compression and leak down tests on the motor? Based on the results, it may further warrant a boroscope inspection on the cylinder walls if any of them read low.

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post #7 of 112 (permalink) Old 04-06-2016, 04:05 PM Thread Starter
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106K
What is OCI? we use whats recommended, i think its 5W-20, what ever it says on the oil cap
No on the PCV - will check (where is this located)
No on the coolant - will check
No leaks, no smoke,
I live in GA and its always garaged
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post #8 of 112 (permalink) Old 04-06-2016, 06:59 PM
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(Sorry, I just noticed Alpine003 had already answered..)

Make sure it is not a problem with the engine/crankcase/etc breather/ventilation/pcv valves. The latter get clogged or stop working if they use a valve. This will increase the inside pressure and will force the oil to go down the valve guides into the engine. It can be the valve guide oil seals, too. If you have been changing your oil and using synthetic oil, it will be rare that the piston rings will be the caused.

If you have blue smoke at startup and then it disappears, then the valve seals may be an issue.

You can check your spark plugs to see the condition of them and what cylinder may be causing the issue.

A compression test will show if the condition of the cylinders, pistons, and valves.

Make sure your engine is not losing oil through any gaskets..
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post #9 of 112 (permalink) Old 04-06-2016, 09:27 PM
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Try using Castrol synthetic oil. It was reporter in TL forum that it burn less oil in j37 engines.... J37 are know for oil consumption... So burn, some not, some start burning at 10k miles some at 130k miles... Mine at 46k miles dont burn a drop...

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post #10 of 112 (permalink) Old 04-06-2016, 10:15 PM Thread Starter
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whats the consensus on just adding oil, can you do this forever, will their be major issues? Was hoping to drive another 100K
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post #11 of 112 (permalink) Old 04-06-2016, 10:19 PM
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Just add oil for ever.. If you dont allow it to run dry the engine should not have any problems to keep on going.

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post #12 of 112 (permalink) Old 04-06-2016, 11:15 PM
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Or like older folks do when this happens, use a 5-30 SAE synthetic oil that doesn't filter that easily through like the 5-20 but protects the engine too.
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post #13 of 112 (permalink) Old 04-07-2016, 09:28 AM
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Since there are no visible leaks, I would be worried about 3 quarts of oil every 7k causing carbon build up in the cylinders and/or maybe affecting the exhaust/emission down the road. It is like pouring grease down the drain, it is going to cause a problem down the road eventually.

I would change out my spark plugs. You can see if you are getting excessive carbon buildup on 1, some or all plugs. Depending on how long you want to keep the MDX and what the fix will be; 3 quarts of oil might be a lot cheaper than fixing the engine. I had an old 97 Honda Accord with a rear main seal leak between the engine/trans. It was just cheaper to add about a quart of oil twice a year (had to put plastic on the garage floor) than to fix.

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post #14 of 112 (permalink) Old 04-07-2016, 09:50 AM
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Quote:
Originally Posted by skirmich View Post
Just add oil for ever.. If you dont allow it to run dry the engine should not have any problems to keep on going.
+1. Oil is cheap...especially considering the cost of tearing down an engine.


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post #15 of 112 (permalink) Old 04-07-2016, 12:03 PM
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Quote:
Originally Posted by bwarren2 View Post
whats the consensus on just adding oil, can you do this forever, will their be major issues? Was hoping to drive another 100K
There is nothing wrong with this as a last resort if you are on a budget and really like the car otherwise. BUT I would really try to identify the issue first as it could be a simple fix.

I don't recommend this bandaid unless you have already had a terminal diagnosis done on it already which would involve a engine rebuild as your only choice.

My $.02

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