MMO in ford explorer 4.0 sohc engine

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Originally Posted By: mechtech2
After 80 years of successful use, MMO is not a passing fad.
But for warm weather use, you probably should have added a qt or two of heavier oil to compensate for the thinning effect of the thin MMO.

Good advice. I may add 1/2 quart of heavier oil. Doubt if 1/2 quart over full will have any impact on the engine??
 
If the engine holds 5 or more qts half a qt overfilled will be fine. You could also remove the filter drain it, reinstall it, and top up with a thicker oil.
 
Originally Posted By: MONKEYMAN
Originally Posted By: Hermann
MMO, Don't get it. Hopefully just a passing fad here on BITOG, like Havoline Dino and countless others. Maybe I would get it, if we knew what it is and is not. Do not like mysteries. JMO


I am using 16 oz MMO with Havoline 10w-30 in my 99 SL2. Spiked the brew with one bottle of EP Moly (left over from use making Mola's brew). Getting 35 mpg highway. Car has never performed better. I have been using MMO since last fall and car just runs better since using it. I plan to continue using MMO on a regular basis. Much cheaper then replacing my rings.
Good for u,,,I use it, does what it says it will do,,,,,,,amen
 
I've been using MMO for a great many years on various vehicles.
Strongly believe that MMO has extended the life of these engines by keeping them cleaner and well lubricated.
Usually add just a pint to the crankcase though year round.
 
With all the MMO hype I did try adding 16 oz for 500 miles on the end of my OCI. Had Amsoil since 1,000 miles, one treatment ARX for 8,000 miles.

Engine has 155,000 miles and the MMO did not make the oil turn black or anything. It did do something maybe thin the viscosity a little but no oil color change. It wasn't bad it did feel ok in my engine.

The MMO was used with Val Synpower 10w-30 for 5,500 miles. Very smooth oil. Oil still looks good color wise with 1 qt makeup oil. I'm going to change the oil out this weekend and feel MMO is not needed didn't do anything. Maybe I have a really clean engine and MMO was not needed for my application.
 
There is always that possibility that you have a clean engine. If it was well maintained that could be the case. I bought a 95 Caprice from my FIL a few years back with only 33,000 miles on it. I couldn't believe the [censored] that came out of that engine after a 4000 mile run with a qt of MMO. My 93 Aerostar has over 183,000 miles on it and the oil comes out cleaner. It happens!
 
Originally Posted By: Russell
Just changed the oil in my ford explorer 4.0 sohc engine. I used 1 quart of MMO and 4 quarts of Valvoline 5w30 conventional oil. I hope MMO cleans the engine a bit. I plan to leave it in for around 3,000 miles. BTW, the truck has 140,000 miles

Any opinions?


I added 1/2 quart of 20w50 valvoline conventional oil.i am 1/2 quart above full. You guys worried me a little about viscosity drop. :)
 
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?Russel -The viscosity will drop, for sure. This can be good in winter.
You were smart to use a thicker oil with your MMO in warm temps.
MMO is roughly a 5W or a little thinner by itself.
 
Originally Posted By: Mystic
How well does MMO work in synthetic oil, like Pennzoil Ultra or Mobil 1 HM?



It works great, I used it with M1 for many years, and am presently using it with PP. No problems at all.
 
Originally Posted By: Mystic
How well does MMO work in synthetic oil, like Pennzoil Ultra or Mobil 1 HM?


I have been using Pennzoil Platinum with MMO for 10,000 miles now, and its working great.
 
You guys must be watching me!! I just did an oil change on my Durango and Tahoe. I put half a quart of MMO in both vehicles. I have used MMO for years and don't worry about it. Both run great!! Durango is at 169,000+ miles and the Tahoe is about to hit 100,000.
 
Originally Posted By: thunderchild
You guys must be watching me!! I just did an oil change on my Durango and Tahoe. I put half a quart of MMO in both vehicles. I have used MMO for years and don't worry about it. Both run great!! Durango is at 169,000+ miles and the Tahoe is about to hit 100,000.


I don't know how long you have been using MMO in your 2 cars, but if you have been using it in these 2 cars for awhile I would bet that your Valvetrain is very clean. JMO
 
Originally Posted By: SteveSRT8
Man, as long as MMO has been around how can you really still be a doubter?


Because all that has been "shown" is that it does no harm. Where is the solid evidence "proving" it does anything? A lot of people "want" to believe that MMO works because they paid for it. Admitting it doesnt work is like admitting one was wrong and made a bad decision. I don't know if you noticed but cantankerous old men (big MMO advocates) are usually pretty prideful and refuse to be wrong.

I'll give it the benefit of the doubt with regards to freeing sticky lifters. Enough people have claimed that, and it is a pretty audible difference, that I am OK with saying that much is true.

There is no evidence showing before and after pics of MMO cleaning anything. There are no before and after compression numbers showing MMO freed up/cleaned ring packs. All there is, is a bunch of people using it w/out problems. There are also about 1000x more people using cheap dino w/out problems, too. Does that mean cheap dino is better than it is with MMO?

It is great that people use it and are happy. Some people want to see actual results before putting money into it. That is their right.

Personally, I have run some tests and it doesn't seem to do jack squat. But I'm still finishing up and hope to find something of value other than a hole in the wallet.
 
Originally Posted By: badtlc
Originally Posted By: SteveSRT8
Man, as long as MMO has been around how can you really still be a doubter?


Because all that has been "shown" is that it does no harm. Where is the solid evidence "proving" it does anything? A lot of people "want" to believe that MMO works because they paid for it. Admitting it doesnt work is like admitting one was wrong and made a bad decision. I don't know if you noticed but cantankerous old men (big MMO advocates) are usually pretty prideful and refuse to be wrong.

I'll give it the benefit of the doubt with regards to freeing sticky lifters. Enough people have claimed that, and it is a pretty audible difference, that I am OK with saying that much is true.

There is no evidence showing before and after pics of MMO cleaning anything. There are no before and after compression numbers showing MMO freed up/cleaned ring packs. All there is, is a bunch of people using it w/out problems. There are also about 1000x more people using cheap dino w/out problems, too. Does that mean cheap dino is better than it is with MMO?

It is great that people use it and are happy. Some people want to see actual results before putting money into it. That is their right.

Personally, I have run some tests and it doesn't seem to do jack squat. But I'm still finishing up and hope to find something of value other than a hole in the wallet.


Tell us about the the type of tests and when you can, the results. I am using MMO in my Explorer on this current oil fill. However, it seemed to do nothing in my BMW. Just trying to understand why it might work in some situations and not others.
 
Originally Posted By: badtlc
Originally Posted By: SteveSRT8
Man, as long as MMO has been around how can you really still be a doubter?


Because all that has been "shown" is that it does no harm. Where is the solid evidence "proving" it does anything? A lot of people "want" to believe that MMO works because they paid for it. Admitting it doesnt work is like admitting one was wrong and made a bad decision. I don't know if you noticed but cantankerous old men (big MMO advocates) are usually pretty prideful and refuse to be wrong.

I'll give it the benefit of the doubt with regards to freeing sticky lifters. Enough people have claimed that, and it is a pretty audible difference, that I am OK with saying that much is true.

There is no evidence showing before and after pics of MMO cleaning anything. There are no before and after compression numbers showing MMO freed up/cleaned ring packs. All there is, is a bunch of people using it w/out problems. There are also about 1000x more people using cheap dino w/out problems, too. Does that mean cheap dino is better than it is with MMO?

It is great that people use it and are happy. Some people want to see actual results before putting money into it. That is their right.

Personally, I have run some tests and it doesn't seem to do jack squat. But I'm still finishing up and hope to find something of value other than a hole in the wallet.


What are you testing it in and what are you trying to resolve? I've seen before after compression results from other products, and quite honestly all I saw were #'s written on a page, for all I know they could have been made up, along with test results. Unfortunately this is the internet and all info has to be taken with a grain of salt.

I wish digital cameras existed in the day I had engines apart to show before and after MMO results, that would set a lot of this to rest. Freeing up sticky lifters is something MMO is quite good at, so it would appear to the guy that doesn't tear into an engine that it is cleaning something up, if his lifter noise stops.

As I said this is the Internet, and you have to take any and all info with a grain of salt. I've tested one of the most popular engine cleaners on Bitog, as well as MMO and for me MMO worked better. Several other members have contacted me via PM stating the same claims. Others have different opinions, that's OK too. In the end we share information and hopefully people process that info and make their own choices. Then after that hopefully they share their observations here to help others out. JMO

Edit to add: People using MMO should use it as directed. While adding a pint of MMO 500-1000 miles before an OCI does some cleaning that is not how the product was intended to be used.
 
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I'm trying everything. Compression numbers, MPG measurements, consumption at idle.....I have even tore down an old motor with stuck rings and did a piston soak for 3 weeks to see if MMO could loosen them up. I've compared it to results with straight dino and dino with ARX maintenance dose.

I also have an older car with 140k+ on the odo w/ consumption issues and no leaks running MMO in the crankcase.

I'll provide some numbers if I find anything positive, anything else would be considered inconclusive due to all the variables and what not.

So far, the only positive I have found was using it in gas for a 2-cycle snow blower that hadn't been started for 12 years. The only thing with that is I can't verify it was MMO that did anything or just fresh gas was all that was needed.
 
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