Just put a pint of MMO in the crankcase of the 528

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andyd

andyd

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Both of them. I used to change to 10w40 for the winter. For the last 3 yrs, I just split a qt of MMO between the 2 cars. 6 bucks, 2 cars.10 minutes. Mine started really hard on the dino 20w50 the other day. @ 9F, but they started. They tend to use the top pint pretty fast, so I knew there was room.Mine was down about 3/4 L. Marina's a pint on the nose. Capacity is 4 liters. A pint is roughly 1/8th, so Idont worry about additive dilution so much. The cars no longer commute, but they do see regular use.About 5K miles each. Come spring I'll give them some fresh 20w50 whether they need it or not.
laugh.gif
 
Originally Posted By: andyd
Come spring I'll give them some fresh 20w50 whether they need it or not.


Have you given any thought to an alternative selection?
 
Originally Posted By: Donald
Why? MMO may do some cleaning, but hurts the lubricity of the lubrication system.



Hurts the lubricity of the lubrication system?
That's absolutely hilarious. What does that mean exactly,as in what part of the system's lubricity is hurt and how hurt is it?
Got any data to support this theory or............
 
Originally Posted By: Clevy
Originally Posted By: Donald
Why? MMO may do some cleaning, but hurts the lubricity of the lubrication system.



Hurts the lubricity of the lubrication system?
That's absolutely hilarious. What does that mean exactly,as in what part of the system's lubricity is hurt and how hurt is it?
Got any data to support this theory or............


That is totally ridiculous. MMO increases lubricity. It will also help lower the pour point and cold weather pumpability of the oil. It will clean and aid in boundary protection. The only downside is it is more volatile than most base oils.
 
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Well no kidding, sheesh.

Why are you not using a thinner oil, or are you just trolling us into asking?!? Here in WI I'm using 5W-30 in my 530i but seriously considered 0W-20 for this winter.

20W-50??

Originally Posted By: andyd
Both of them. I used to change to 10w40 for the winter. For the last 3 yrs, I just split a qt of MMO between the 2 cars. 6 bucks, 2 cars.10 minutes. Mine started really hard on the dino 20w50 the other day. @ 9F, but they started. They tend to use the top pint pretty fast, so I knew there was room.Mine was down about 3/4 L. Marina's a pint on the nose. Capacity is 4 liters. A pint is roughly 1/8th, so Idont worry about additive dilution so much. The cars no longer commute, but they do see regular use.About 5K miles each. Come spring I'll give them some fresh 20w50 whether they need it or not.
laugh.gif
 
OK, explain to me why you don't just use a thinner synthetic oil like M1 5W-30 to achieve the same result - or better.

Originally Posted By: salv
That is totally ridiculous. MMO increases lubricity. It will also help lower the pour point and cold weather pumpability of the oil. It will clean and aid in boundary protection. The only downside is it is more volatile than most base oils.
 
Originally Posted By: Clevy
Originally Posted By: Donald
Why? MMO may do some cleaning, but hurts the lubricity of the lubrication system.



Hurts the lubricity of the lubrication system?
That's absolutely hilarious. What does that mean exactly,as in what part of the system's lubricity is hurt and how hurt is it?
Got any data to support this theory or............


Hurt meaning a decrease in lubricity.

If you look at some of my previous posts on MMO you will see links to a test where MMO and other additives were added to diesel fuel and then the lubricity of the fuel was then measured by an industry standard test. Two cycle oil was added and it helped with the lubricity of the diesel oil. When MMO was added it hurt the lubricity. About 15 additives in total were tested, some helped and some hurt.

If it hurts the lubricity of diesel fuel I cannot see it doing anything but hurting the lubricity of motor oil.

These tests had nothing to do with actually running a diesel engine.

No oil manufacturer not car maker suggests any additives in the oil.
 
Originally Posted By: salv
Originally Posted By: Clevy
Originally Posted By: Donald
Why? MMO may do some cleaning, but hurts the lubricity of the lubrication system.



Hurts the lubricity of the lubrication system?
That's absolutely hilarious. What does that mean exactly,as in what part of the system's lubricity is hurt and how hurt is it?
Got any data to support this theory or............


That is totally ridiculous. MMO increases lubricity. It will also help lower the pour point and cold weather pumpability of the oil. It will clean and aid in boundary protection. The only downside is it is more volatile than most base oils.


Sorry - but it decreases lubricity. It may have some other qualities however.
 
Originally Posted By: Donald
Originally Posted By: salv
Originally Posted By: Clevy
Originally Posted By: Donald
Why? MMO may do some cleaning, but hurts the lubricity of the lubrication system.



Hurts the lubricity of the lubrication system?
That's absolutely hilarious. What does that mean exactly,as in what part of the system's lubricity is hurt and how hurt is it?
Got any data to support this theory or............


That is totally ridiculous. MMO increases lubricity. It will also help lower the pour point and cold weather pumpability of the oil. It will clean and aid in boundary protection. The only downside is it is more volatile than most base oils.


Sorry - but it decreases lubricity. It may have some other qualities however.


I don't think you understand the product.
 
+1 for just using a quality 0w40 weight year round.

Superior product than any 20w50, especially in cold weather starts that you are currently experiencing.
 
Originally Posted By: Donald
links to a test where MMO and other additives were added to diesel fuel and then the lubricity of the fuel was then measured by an industry standard test...When MMO was added it hurt the lubricity.


http://www.jatonkam35s.com/DeuceTechnicalManuals/Diesel_fuel_additive_test.pdf

13) Used Motor Oil, Shell Rotella T 15W-40, 5,000 miles used.
Unconventional
(Not ULSD compliant, may damage systems)
HFRR 634, 2 micron improvement (statistically insignificant change)
200:1 ratio
16.64 oz/tank

So Rotella has no impact on lubricity?
wink.gif
 
Originally Posted By: Ramblejam
Originally Posted By: Donald
links to a test where MMO and other additives were added to diesel fuel and then the lubricity of the fuel was then measured by an industry standard test...When MMO was added it hurt the lubricity.


http://www.jatonkam35s.com/DeuceTechnicalManuals/Diesel_fuel_additive_test.pdf

13) Used Motor Oil, Shell Rotella T 15W-40, 5,000 miles used.
Unconventional
(Not ULSD compliant, may damage systems)
HFRR 634, 2 micron improvement (statistically insignificant change)
200:1 ratio
16.64 oz/tank

So Rotella has no impact on lubricity?
wink.gif



It was used motor oil. The 2 cycle oil helped. Who knows how used up the Rotella T was at 5000 miles.

BTW - I do use Walmart TCW oil in my diesel fuel, 1 oz/gallon. The Cummins has a very expensive Bosch VP44 mechanical injector pump. While diesel fuel should have additives to provide enough lubricity, the TCW oil is cheap and I can be positive there is enough lubricity.
 
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the 528e s are 25 yrs old and spec 20w 50 down to 32F. I could probably go down to 10W30, but I figure BMW has a reason. I ran my first one to 350K miles on dino 20w50. I see no reason to switch from a winner.
laugh.gif
 
Originally Posted By: andyd
the 528e s are 25 yrs old and spec 20w 50 down to 32F. I could probably go down to 10W30, but I figure BMW has a reason. I ran my first one to 350K miles on dino 20w50. I see no reason to switch from a winner.
laugh.gif



An arbitrarily decided definition of success. Whether it's 100k, 200k, or 350k, you always run across individuals who've declared what they've done was the de facto pick.

In other words, could it possibly have been a 500k engine, and you just hastened its demise with 20w-50?

Recommended oil (from the 80's):
20W-50: 15°F to 122°F
15W-50: -4°F to 105°F
15W-40: -4°F to 85°F
10W-50: -20°F to 68°F
10W-40: -20°F to 50°F
10W-30: -20°F to 40°F
5W-30: -40°F to 22°F
5W-20: -40°F to 15°F
 
Originally Posted By: Clevy
Originally Posted By: Donald
Why? MMO may do some cleaning, but hurts the lubricity of the lubrication system.



Hurts the lubricity of the lubrication system?
That's absolutely hilarious. What does that mean exactly,as in what part of the system's lubricity is hurt and how hurt is it?
Got any data to support this theory or............


IIRC that's old news regarding MMO being added to diesel fuel that pops up from time to time. LOL Here we're talking about adding it to engine oil. The funny thing is the UOA reports posted on this site where MMO was added to oil were very good. I'll call that data for lack of a better term. So if it hurts lubricity the UOA's show otherwise. Wear metals were great, in fact in a few reports Blackstone even commented about them being very good. The only negative was a slight TBN hit. But if you're cleaning an engine doing an extended OCI is not advisable anyway.

This gets old doesn't it?
 
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