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#2102702 - 12/11/10 10:57 AM Re: Motorcraft 5W50 Full Synthetic Motor Oil [Re: Eddie]
SIXSPEED Offline


Registered: 08/12/10
Posts: 526
Loc: Arizona
Originally Posted By: Eddie
Was the bottle shaken well before taking the sample? Additives do settle out. This is what I suspect.

No I did not shake the bottle before taking the sample as I don't shake them before pouring the oil in the motor.

The UOA should indicate whether the oil has unusually low Zn and P.


Edited by SIXSPEED (12/11/10 10:59 AM)

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#2103208 - 12/11/10 08:20 PM Re: Motorcraft 5W50 Full Synthetic Motor Oil [Re: SIXSPEED]
unDummy Offline


Registered: 02/01/03
Posts: 8756
Loc: RI
I shake always and its a good habit to start.
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#2117729 - 12/26/10 12:31 PM Re: Motorcraft 5W50 Full Synthetic Motor Oil [Re: Colt45ws]
chubbs1 Offline


Registered: 06/09/10
Posts: 4574
Loc: Merritt Island FL, USA
Originally Posted By: Colt45ws
Thats blackstone and their machinery again. They must not know know how to calibrate. You cant meet GF4/5 SM/SN with these levels. A minimum level of Phos does exist.


For API only a phos. Max. exists no minimum. I think we are going to see a lot of this. These are just SN preparations and I think we are going to see a big drop in addy packs in the coming years. JMO
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#2118352 - 12/27/10 03:16 AM Re: Motorcraft 5W50 Full Synthetic Motor Oil [Re: chubbs1]
Colt45ws Offline


Registered: 08/15/06
Posts: 9167
Loc: Central Washington
Originally Posted By: chubbs1
Originally Posted By: Colt45ws
Thats blackstone and their machinery again. They must not know know how to calibrate. You cant meet GF4/5 SM/SN with these levels. A minimum level of Phos does exist.


For API only a phos. Max. exists no minimum. I think we are going to see a lot of this. These are just SN preparations and I think we are going to see a big drop in addy packs in the coming years. JMO

Yes, there is a minimum.

Quote:
Phosphorus, %min 0.06

Regardless of whether it is resource conserving or not.
0.06% would be 600ppm. The max is 0.08% so the range for resource conserving would be 600-800ppm. I cant imagine a 5W50 being resource conserving, so technically, no max exists.

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#2118748 - 12/27/10 03:01 PM Re: Motorcraft 5W50 Full Synthetic Motor Oil [Re: SIXSPEED]
unDummy Offline


Registered: 02/01/03
Posts: 8756
Loc: RI
Blackstone states that they ran it twice. So, they were most likely dumbfounded by the low ZDP. Should've shaken the bottle.

Definitely need another shaken sample sent to Blackstone or another lab.
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#2120182 - 12/28/10 11:39 PM Re: Motorcraft 5W50 Full Synthetic Motor Oil [Re: unDummy]
SIXSPEED Offline


Registered: 08/12/10
Posts: 526
Loc: Arizona
Originally Posted By: unDummy
Blackstone states that they ran it twice. So, they were most likely dumbfounded by the low ZDP. Should've shaken the bottle.

Definitely need another shaken sample sent to Blackstone or another lab.


Rather than having another VOA done on the MC 5W-50, I sent in a used oil sample from the same lot; I'll post when I get the results,

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#2121342 - 12/29/10 11:57 PM Re: Motorcraft 5W50 Full Synthetic Motor Oil [Re: Colt45ws]
SIXSPEED Offline


Registered: 08/12/10
Posts: 526
Loc: Arizona
Originally Posted By: Colt45ws

Regardless of whether it is resource conserving or not.
0.06% would be 600ppm. The max is 0.08% so the range for resource conserving would be 600-800ppm. I cant imagine a 5W50 being resource conserving, so technically, no max exists.

That's true if the oil had to only comply with the API SM/SN spec, however, Ford imposes their own spec (WSS-M2C931-B) on this oil and it would not surprise me if it establishes a max level for P even though it's not considered an energy conserving oil.


Edited by SIXSPEED (12/30/10 12:00 AM)

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#2123211 - 12/31/10 08:34 PM Re: Motorcraft 5W50 Full Synthetic Motor Oil [Re: SIXSPEED]
SIXSPEED Offline


Registered: 08/12/10
Posts: 526
Loc: Arizona
The levels of P and Zn from the used oil sample is higher than the levels measured from the virgin sample of the same oil. I can only attribute the low levels to those metals falling out of suspension during the 8 months the bottle was sitting on the shelf. Perhaps the VOA readings on P and Zn would have been in line with the UOA measurements had I shook the bottle before taking the sample. Here's the UOA of the same oil; the levels of P and Zn are compliant with API SM/SN levels.


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#2123459 - 01/01/11 06:13 AM Re: Motorcraft 5W50 Full Synthetic Motor Oil [Re: SIXSPEED]
postjeeprcr Offline


Registered: 01/05/09
Posts: 1820
Loc: USA
8 months seems way to fast for additives to fall out. Thanks for doing the VOA and UOA
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#2123771 - 01/01/11 01:48 PM Re: Motorcraft 5W50 Full Synthetic Motor Oil [Re: SIXSPEED]
unDummy Offline


Registered: 02/01/03
Posts: 8756
Loc: RI
I think we at BITOG use 'additive falling out' too much. I prefer the term "additive concentration" and not "fall out". Gravity did its thing. Oil is a formula or recipe. Don't expect it to be the same everywhere in the bottle. Notice the almost 2:1 ratio of the additive package when comparing the VOA and UOA.

UOA is excellent.

Typical wide spread oil sheared into a 40wt. Castrol 5w50 is probably another option. And, weather permitting, I wouldn't hesitate using a 10w50, 10w60, or 15w-50 in the summer, or a 5w40 in the winter. Mobil1 and Eneos also have a 0w50 for northerners.
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Those who say it cannot be done, should not interrupt the person doing it.
Your automaker lied!
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#2129037 - 01/06/11 01:27 AM Re: Motorcraft 5W50 Full Synthetic Motor Oil [Re: unDummy]
CATERHAM Offline


Registered: 11/18/05
Posts: 10133
Loc: Burlington, Ontario, Canada
Yes 24% oil shear is a lot in 1359 miles but may not be a concern since you are using a Motorcraft oil in a Ford product.
Is the 5W-50 the spec' oil for the 500GT?
Do you have an oil pressure gauge in the car and if so do you know what the readings were at the end of the OCI? I suspect the reading were still well above the minimum spec' for the engine.

You mentioned you've switched to RL now; I sure hope it wasn't their 5W-50 grade which is a ridiculously thick oil with it's HTHS vis of 5.9cP and about 2 grades thicker in reality to the Motorcraft OEM oil?
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#2129259 - 01/06/11 09:08 AM Re: Motorcraft 5W50 Full Synthetic Motor Oil [Re: SIXSPEED]
aquariuscsm Online   content


Registered: 12/30/06
Posts: 15758
Loc: South Texas,USA
Where did you find the MC 5W50?
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#2129469 - 01/06/11 12:08 PM Re: Motorcraft 5W50 Full Synthetic Motor Oil [Re: CATERHAM]
SIXSPEED Offline


Registered: 08/12/10
Posts: 526
Loc: Arizona
Originally Posted By: CATERHAM
Yes 24% oil shear is a lot in 1359 miles but may not be a concern since you are using a Motorcraft oil in a Ford product.
Is the 5W-50 the spec' oil for the 500GT?
Do you have an oil pressure gauge in the car and if so do you know what the readings were at the end of the OCI? I suspect the reading were still well above the minimum spec' for the engine.

You mentioned you've switched to RL now; I sure hope it wasn't their 5W-50 grade which is a ridiculously thick oil with it's HTHS vis of 5.9cP and about 2 grades thicker in reality to the Motorcraft OEM oil?

5W50 is the OEM spec oil for the GT500. Oil pressure gauge reads the same at beginning and end of OCI. Yes I am currently using Red Line 5W50 in the 5.4L motor. Red Line 5W50 is a thick oil but at 100 degree C, it is a 50 grade oil just like the Motorcraft so I don't see where you are evaluating it is 2 grades thicker than MC.

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#2129470 - 01/06/11 12:09 PM Re: Motorcraft 5W50 Full Synthetic Motor Oil [Re: aquariuscsm]
SIXSPEED Offline


Registered: 08/12/10
Posts: 526
Loc: Arizona
I can purchase MC 5W50 at my local Ford dealer or cheaper on-line from K-man Parts.

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#2129484 - 01/06/11 12:26 PM Re: Motorcraft 5W50 Full Synthetic Motor Oil [Re: CATERHAM]
SIXSPEED Offline


Registered: 08/12/10
Posts: 526
Loc: Arizona
Originally Posted By: CATERHAM
You mentioned you've switched to RL now; I sure hope it wasn't their 5W-50 grade which is a ridiculously thick oil with it's HTHS vis of 5.9cP and about 2 grades thicker in reality to the Motorcraft OEM oil?

Here are the viscosity specs for the two oils:

RL 5W50 = 20.5 cSt @ 100 degrees, MC 5W50 = 19.93 cSt @ 100 degrees C (from VOA); difference = 0.57 cSt.


Edited by SIXSPEED (01/06/11 12:26 PM)

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