lubro-moly mos2 oil additive and viscosity

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Does anyone know to what extent, if any, lubro-moly mos2 oil additive will affect oil viscosity?

I've added a full can each to my Accord and Miata which use 5w-20 and 5w-30, respectively.

Unrelated to my above question, but intriguing to me regarding the the topic of mos2, I recently took the Accord from Boston to NYC for the Easter Holiday, ~215 miles each way. When I departed Boston it was a very windy day, the wind coming from the west at +20mph, so I expected the headwind to adversely affect my mpg. On the trip back Sunday afternoon there was exceptional traffic getting out of NYC, stop and go. It took an hour and a half to be clear of the traffic and running at highway speed, between 70 and 75 mph.

My paper and pencil mpg for the trip was 36.6, which was just shy of my record 37. This Winter, with a good deal of city travel I would get in the low to mid twenties, low thirties on the highway.

I don't know whether to attribute this bump in mpg to the mos2 or to to the possibility that the wind at highway level was not a direct headwind but swirling and helping me along. At any rate, when I got to NYC with 215 miles on the ODO and looked at the gas gauge I did a double take. It was a little below 3/4, which, relative to the miles traveled, I had never seen before. The gas tank holds 17 gallons, but the reserve light will come on when a little more than 12 have been used.
 
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IIRC LM MoS2 is mixed into a 30 grade mineral oil. I would imagine it would "thicken" a 5W20 oil slightly. I wish I had exact figures to see just how much "thicker" if any it would be.
 
Is not a whole can = alot A LOT of PPM of this stuff? AFA MPG withouyt a continuouos MPG record, you cannot say 1 trip isconclusive - but rather a good start
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I Might be a bit afraid of this moly disperse phase setting out of such a massive quantity installed.
 
From what I have read I too remember it being "in 30 grade".

It does appear thinner than a lot of other additives, although not the extremely thin liquid that some flushes are.

Can't tell you if MOS2 can really make your engine THAT much more efficient. However I have found that driving like grandma helps more than anything else.
No additive can take an engine and make it noticeably more efficient, unless said engine has issues at hand.

I'd put money that the MOS2 helped and the wind at your back helped even more. Facts are that changing all fluids out with synthetics and making sure everything is clean and running correctly only shaves about 2% off your gas bill.
Although it could also, theoretically, extend the life of your equipment.
 
Originally Posted By: ARCOgraphite
Is not a whole can = alot A LOT of PPM of this stuff? I Might be a bit afraid of this moly disperse phase setting out of such a massive quantity installed.


They recommend using the whole can at every oil change. But you know us (chemist) on BITOG, we will adjust quantities until we know more than the manufactures of the products do.
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Originally Posted By: demarpaint
IIRC LM MoS2 is mixed into a 30 grade mineral oil. I would imagine it would "thicken" a 5W20 oil slightly. I wish I had exact figures to see just how much "thicker" if any it would be.



(I think) If it is a straight 30 weight, than it would thicken any multi-grade XW-30 oil, and it might even thicken a multi-grade XW-40 oil.


I think the MOS2 will improve fuel economy under certain circumstances. For regular light driving, I don't think you will see any improvement. My V-8 engine in the truck will not see an improvement if the truck is empty, but if I tow or carry a heavy load for a long distance, I will see an improvement over not using MOS2 when towing or hauling.
 
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Originally Posted By: Johnny
They recommend using the whole can at every oil change. But you know us (chemist) on BITOG, we will adjust quantities until we know more than the manufactures of the products do.
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Instructions? Who wants to follow instructions?
 
Agreed that there are many variables when dealing with mpg. Could be the higher ambient temps and the fuel may have switched over to Summer grade. I use only Shell 87, so there is consistency there.

The wind was from the west, and I was traveling west on the Mass T-pike until I-84, 45 miles or so. If 84S is more like SW than I could see my gains there, I suppose. From a map it appears the route is SW from the mass border through CT to NYC. Interesting.

With gas prices where they are I'll take any help I can get, be it from Mother Earth or a German chemist.
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Originally Posted By: k24a4

Does anyone know to what extent, if any, lubro-moly mos2 oil additive will affect oil viscosity?


If you use it in the late spring or summer, don't worry about it.

Quote:
Unrelated to my above question, but intriguing to me regarding the the topic of mos2, I recently took the Accord from Boston to NYC for the Easter Holiday, ~215 miles each way. When I departed Boston it was a very windy day, the wind coming from the west at +20mph, so I expected the headwind to adversely affect my mpg. On the trip back Sunday afternoon there was exceptional traffic getting out of NYC, stop and go. It took an hour and a half to be clear of the traffic and running at highway speed, between 70 and 75 mph.

My paper and pencil mpg for the trip was 36.6, which was just shy of my record 37. This Winter, with a good deal of city travel I would get in the low to mid twenties, low thirties on the highway.

I don't know whether to attribute this bump in mpg to the mos2 or to to the possibility that the wind at highway level was not a direct headwind but swirling and helping me along. At any rate, when I got to NYC with 215 miles on the ODO and looked at the gas gauge I did a double take. It was a little below 3/4, which, relative to the miles traveled, I had never seen before. The gas tank holds 17 gallons, but the reserve light will come on when a little more than 12 have been used.


Maybe the Lubro-Moly helped the gas mileage, maybe not, but I will say that many members are happy with this product, the stuff is about $4.00 a bottle and its worth every penny. JMO
 
Originally Posted By: Johnny
Originally Posted By: ARCOgraphite
Is not a whole can = alot A LOT of PPM of this stuff? I Might be a bit afraid of this moly disperse phase setting out of such a massive quantity installed.


They recommend using the whole can at every oil change. But you know us (chemist) on BITOG, we will adjust quantities until we know more than the manufactures of the products do.
grin2.gif



Hey.. I resemble this remark. I used alot less than a can, maybe 4 ounces.
 
I´ve been using in my 1993 Porsche 911 (type 964) for the last 3 changes the Liqui Moly 10w-40Mos2 oil, this oil already has the Mos2 added in it.
I don´t think is has improved the gas mileage or given added viscosity for that matter, but my car is using less oil and running very smoothly. I will continue to use it,I am a happy customer
 
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I cant see how 6 or 8 oz of 30w oil will affect the viscosity in 4 or 5 qt sum to any great extent.
Follow manufacturers directions for the product and forget it.
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Originally Posted By: ltslimjim
^Thank you. Get a UOA for kicks.
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I plan on doing my first UOA on one or both cars in the Fall. We'll see...
 
Originally Posted By: Trav
I cant see how 6 or 8 oz of 30w oil will affect the viscosity in 4 or 5 qt sum to any great extent.
Follow manufacturers directions for the product and forget it.
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+1. I had the same thought too. Any affect on viscosity will be minimal.

-Spyder
 
The added amount is so small compared to the crankcase oil,that I would not even consider it. A hair more/less viscosity is virtually the same.
The actual moly will also thicken things. It has body and substance.
The objective is to plate parts that rub against each other, which it does.
 
I'm trying it in my oldsmobile, i have no idea how to tell if it helps. I'm not sure what a uoa will show. I also took the empty can and added oil and shook it around, put that in my pushmower, did'nt want to waste it. I was surprised how much i got out doing that. I was enough to turn the quart of oil for the pushmower olive colored too.
 
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