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Old 03-06-2010, 12:01 AM   #1
AndreasChen
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Default How much MMO to add in the oil?

Hi,

I read 10%-25% of MMO from their official guide. I found the thing to be thin like water so if I use 5W-30 full synthetic, is it safe to mix 1-MMO and 3-OIL?

Thanks!

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Old 03-06-2010, 12:19 AM   #2
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Default Re: How much MMO to add in the oil?

I have done it, but have added EP Moly, which is very thick. Mostly, I have used 16 oz MMO, 12 oz. EP Moly and the rest oil. Mine uses oil. It smoked more when using a quart of MMO. But, my car has never run stronger. OldNuc does not recommend MMO. I am temped to do a UOA next time I use it to see how the engine wear numbers are. I believe 16 oz MMO does enough for my car.

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Old 03-06-2010, 12:30 AM   #3
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Default Re: How much MMO to add in the oil?

Thanks!
What is OldNuc speaking about MMO?

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Old 03-06-2010, 12:41 AM   #4
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Default Re: How much MMO to add in the oil?

Quote:
Originally Posted by AndreasChen View Post
Thanks!
What is OldNuc speaking about MMO?
I looked for the thread where it was discussed. He may chime in with his thoughts any minute now.

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Old 03-06-2010, 01:27 AM   #5
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Default Re: How much MMO to add in the oil?

I am not a fan of additives for engine oil or transmission fluid. It is better to just buy a higher quality product to start with.

To do any good with UOA you need to do several so you have a trend. Or you have to figure that everything that is in the sampled oil was added furring the use cycle sampled. Then the composition of the virgin oil becomes your reference point.

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Old 03-06-2010, 10:05 AM   #6
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Default Re: How much MMO to add in the oil?

Quote:
Originally Posted by OldNuc View Post
I am not a fan of additives for engine oil or transmission fluid. It is better to just buy a higher quality product to start with.

To do any good with UOA you need to do several so you have a trend. Or you have to figure that everything that is in the sampled oil was added furring the use cycle sampled. Then the composition of the virgin oil becomes your reference point.
That is not going to happen. I barely have enough time to change my oil. I will continue to use MMO. I was interested in one UOA to see if what you said is true. If I recall correctly you indicated MMO would not provide proper lubrication, especially at high speed driving for a length of time. I will use a heavier oil or the Moly EP when using MMO. I was thinking HDEO 15w-40 with a pint of MMO as a cleaning combination. Then it would be closer to a 10w-30.

To the OP, you may want to go to the Marvel Mystery Oil (Turtle Wax) forum for more info.

http://www.marvelmysteryoil.com/inde...s/viewforum/2/

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Old 03-06-2010, 10:41 AM   #7
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Default Re: How much MMO to add in the oil?

Quote:
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... I will use a heavier oil or the Moly EP when using MMO. I was thinking HDEO 15w-40 with a pint of MMO as a cleaning combination. Then it would be closer to a 10w-30.
That would be a better solution as the failure mechanism you are concerned with is film failure under load and having the oil film thin out due to low viscosity.

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Old 03-06-2010, 11:06 PM   #8
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Default Re: How much MMO to add in the oil?

Quote:
Originally Posted by OldNuc View Post
That would be a better solution as the failure mechanism you are concerned with is film failure under load and having the oil film thin out due to low viscosity.
Also, along those lines I don't think I will use the MMO this summer when there is extra heat. My car has never run stronger after using MMO, so I think it is doing some cleaning. I know that is not scientific, but after driving it 90,000 miles subtle changes are noticeable. If I could get time to do a compression test that might give some hard data. It was in the low 180's pre-MMO.

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Old 03-07-2010, 12:28 AM   #9
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Default Re: How much MMO to add in the oil?

The real purpose of MMO was to clean and unstick compression rings. Your compression may have gone up. That would do it performance wise.

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Old 03-07-2010, 02:21 AM   #10
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Default Re: How much MMO to add in the oil?

I would use MMO or seafoam before you're getting ready to do an oil change. Put it in, go maybe 500 miles, change the oil. I wouldn't use any additive more often than that.

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Old 03-07-2010, 09:34 AM   #11
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Default Re: How much MMO to add in the oil?

Quote:
Originally Posted by quiksc2 View Post
I would use MMO or seafoam before you're getting ready to do an oil change. Put it in, go maybe 500 miles, change the oil. I wouldn't use any additive more often than that.
That is how I used it the first time. Since I use oil I just used it to top off about 700 miles before the oil change. Now, I put it in at the beginning of the oil change, before oil has had a chance to shear. At the MMO website the general instruction is to run it 3,000 miles. I have topped off with 5 quarts of oil by then, so MMO does not stay in my engine that long. I am hoping it will clean the ring packs and bring life back to the oil control rings.

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