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#3270967 - 02/05/14 06:09 AM Re: MMO is imperceptably thicker in cold [Re: turtlevette]
demarpaint Offline


Registered: 07/03/05
Posts: 20763
Loc: NY
Originally Posted By: turtlevette
Originally Posted By: Clevy


This makes no sense.
Even with the oil being thinner the engine is cold,and hasn't gone through the thermal expansion once it's running.
Don't start a stored car. It's just that simple. If you aren't going to drive it then don't start it.
Thinning the oil makes no sense. Especially considering you're diluting the additive package of the oil.
Add a can of mos2 to the oil and put 500 miles in so the mos2 plates the internals,then cold start wear will be lessened.
But the whole mmo thinning oil idea is hilarious at best.


Why not? As I already said above starting with a viscosity close to operating would be beneficial.

MMO is hilarious but mos2 is serious?

I find this board full of people with chips on their shoulders. Advise is all over the map. Very few have the technical knowledge to back up their opinion.



He gave you good advise. While the MMO will aid in cold starting, the engine still has to come up to temp and burn off condensation etc. The only way to do this is to allow the oil to come up to operating temps long enough to do that. Depending on how cold it is that could take 30 minutes or more. Leaving the engine off is really the best thing to do unless you plan on driving the car. 30 minutes of idling the engine won't do it either, the vehicle should be driven. HTH
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#3271055 - 02/05/14 08:30 AM Re: MMO is imperceptably thicker in cold [Re: turtlevette]
kschachn Offline


Registered: 12/26/05
Posts: 2341
Loc: Upper Midwest
Me too. And where is your technical knowledge to back up your opinion? This whole thread, started by you, was begun by your statement:

"Doing a subjective shake test in the bottle I can't tell the viscosity difference between room temp and 15deg f."

That is scientific how?

Originally Posted By: turtlevette
I find this board full of people with chips on their shoulders. Advise is all over the map. Very few have the technical knowledge to back up their opinion.
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#3271151 - 02/05/14 10:10 AM Re: MMO is imperceptably thicker in cold [Re: turtlevette]
CourierDriver Offline


Registered: 12/27/09
Posts: 2965
Loc: Tennessee
Has anyone blown your engine with mmo or without mmo in your oil in the last 5 years.
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#3272051 - 02/06/14 01:33 AM Re: MMO is imperceptably thicker in cold [Re: CourierDriver]
turtlevette Offline


Registered: 12/24/13
Posts: 685
Loc: Massachusetts
Originally Posted By: CourierDriver
Has anyone blown your engine with mmo or without mmo in your oil in the last 5 years.


I blew an old 283 a friend gave me for the vette. It threw a rod thru the oil pan when I was on RTE 3. There was some dude tailgating me at the time and I see his wipers go on. I must have sprayed his whole car with oil. It kept running all the way home.

I don't remember what oil I was running but it had been making a racket for a long time.
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#3272346 - 02/06/14 10:00 AM Re: MMO is imperceptably thicker in cold [Re: turtlevette]
friendly_jacek Offline


Registered: 05/04/03
Posts: 5114
Loc: southeast US
Originally Posted By: turtlevette


Why not? As I already said above starting with a viscosity close to operating would be beneficial.

MMO is hilarious but mos2 is serious?

I find this board full of people with chips on their shoulders. Advise is all over the map. Very few have the technical knowledge to back up their opinion.



If you know better, why did you ask the question in the first place? I guess you expected everyone would agree with you, didn't you? And now you are angry. I wasted my time replying to the thread.

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#3272450 - 02/06/14 11:40 AM Re: MMO is imperceptably thicker in cold [Re: friendly_jacek]
dave5358 Offline


Registered: 04/25/13
Posts: 483
Loc: North Bend
Originally Posted By: friendly_jacek
Originally Posted By: turtlevette


Why not? As I already said above starting with a viscosity close to operating would be beneficial.

MMO is hilarious but mos2 is serious?

I find this board full of people with chips on their shoulders. Advise is all over the map. Very few have the technical knowledge to back up their opinion.



If you know better, why did you ask the question in the first place? I guess you expected everyone would agree with you, didn't you? And now you are angry. I wasted my time replying to the thread.


Hilarity aside, if someone wants thinner oil, why not just start with thinner oil? Mixing in MMO (or another thin motor oil) to thin an existing oil just adds to the confusion. MMO added to motor oil cleans the engine mostly because of the solvents in MMO - not the light weight mineral oil base.

For a seldom-used or classic vehicle, why not use 0w-nn synthetic oil? The owner's manual surely calls for something much heavier. 0w-nn synthetic oil has not been available for that many years and vehicle makers tend to be ultra conservative - two reasons 0w-nn might not be a recommended oil choice. If you do run the vehicle, you might get a oil pressure light warning at idle, but so what? That's a bit different than getting an oil pressure warning while cruising the interstate. The engine is lightly loaded at idle and as long as there's an adequate supply of oil you should be okay.

As for MoS2, that should be a very serious option. It's a dry film lubricant that will get into the bearings... and stay there... and not drain out. What more could you want? It should be just about ideal for the seldom-used or classic vehicle to lubricate on start-up. It might give you some other benefits as well, like reducing oil consumption past the rings.
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#3272553 - 02/06/14 01:22 PM Re: MMO is imperceptably thicker in cold [Re: dave5358]
kschachn Offline


Registered: 12/26/05
Posts: 2341
Loc: Upper Midwest
Stop right there. You are making sense and some threads don't allow that.

Originally Posted By: dave5358
Hilarity aside, if someone wants thinner oil, why not just start with thinner oil?
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#3272616 - 02/06/14 02:19 PM Re: MMO is imperceptably thicker in cold [Re: friendly_jacek]
turtlevette Offline


Registered: 12/24/13
Posts: 685
Loc: Massachusetts
Originally Posted By: friendly_jacek
If you know better, why did you ask the question in the first place? I guess you expected everyone would agree with you, didn't you? And now you are angry. I wasted my time replying to the thread.


I'm amused. Not angry at all. I like to get a good debate going.

I made a statement about oil/additives in a very specific application and was looking for discussion. Your answer was that I should build a garage and store my cars in such a way that I would not have to start them all winter.

That's not an answer out of left field? It's not just you. A guy asked if he could run 20 weight oil in his 70's car and the answer was to put a $4000 FI system on. Other recommendations were to check the O2 sensors and some other ridiculous stuff.

Why do people give advice if they don't have the knowledge and/or experience to back it up?
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#3272631 - 02/06/14 02:36 PM Re: MMO is imperceptably thicker in cold [Re: turtlevette]
SteveSRT8 Offline


Registered: 10/10/08
Posts: 14280
Loc: Sunny Florida
And the other side of that is this is an Internet forum. Ask a question and you get answers. You also get a lot of opinions and off topic discussion.

Not knocking you here, but the expectations seem way out of line. How could anyone imagine they would "like" all the answers?

But times a dozen on the start 'em only if you can drive 'em. I worked for a car collector when I was young who had a huge building full of classics, 4 of us were staffed there!

The iron clad rule was "don't start it at all unless you can DRIVE it for 30 minutes minimum". Most serious collectors follow this rule.
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