Oil options for a 2016 Ford Shelby GT350

Status
Not open for further replies.
Originally Posted By: Fatboymoe
I have a question. Has the dealer serviced the the car before the bearing let go ? The reason I ask is because I had a local Ford dealer service my EcoBoost F150 and after paying for the Motorcraft full synthetic 5w30, they put in bulk 5w20 instead.


That's my suspicion as well. Somehow 5W-20 wound up in that motor.
 
Originally Posted By: CJs06
Hello all, I am searching for an oil to use in my GT350.

I'm a little nervous using the factory fill (Motorcraft 5W-50) because I recently experience a spun rod bearing on cylinder 8 at 5000 miles (stock car). Fortunately Ford replaced the engine under warranty, no issues there! I don't want to assume the specifics of the bearing failure, but I do know it is obviously related to an oiling failure and additionally it occurred at high RPM.


The real question is at what oil temperature did the failure occur?
 
Originally Posted By: Fatboymoe
I have a question. Has the dealer serviced the the car before the bearing let go ? The reason I ask is because I had a local Ford dealer service my EcoBoost F150 and after paying for the Motorcraft full synthetic 5w30, they put in bulk 5w20 instead.


I was still on the factory fill oil that came in the engine at 5000 miles when the bearing spun.

Originally Posted By: Mitch Alsup
Originally Posted By: CJs06
Hello all, I am searching for an oil to use in my GT350.

I'm a little nervous using the factory fill (Motorcraft 5W-50) because I recently experience a spun rod bearing on cylinder 8 at 5000 miles (stock car). Fortunately Ford replaced the engine under warranty, no issues there! I don't want to assume the specifics of the bearing failure, but I do know it is obviously related to an oiling failure and additionally it occurred at high RPM.


The real question is at what oil temperature did the failure occur?


A little over 200 F. I usually glance at the oil pressure and temperature gauges when I drive.
 
Originally Posted By: crazyoildude
I don't think the oil was to blame if it was the correct viscosity.. That oil is used in lots of those with zero problems..


To be clear, I'm not blaming the Motorcraft oil for the bearing failure (I don't think lack of lubrication is as simple as a "bad" oil); the new engine has Motorcraft in it and I'm not worried, just nervous driving the car hard. I'm exploring better oil options for my engine in both price and performance. So far the only argument against that is to not befuddle the car's warranty by using an oil that Ford doesn't approve of.
 
Originally Posted By: CJs06
Originally Posted By: crazyoildude
I don't think the oil was to blame if it was the correct viscosity.. That oil is used in lots of those with zero problems..


To be clear, I'm not blaming the Motorcraft oil for the bearing failure (I don't think lack of lubrication is as simple as a "bad" oil); the new engine has Motorcraft in it and I'm not worried, just nervous driving the car hard. I'm exploring better oil options for my engine in both price and performance. So far the only argument against that is to not befuddle the car's warranty by using an oil that Ford doesn't approve of.

Not only that, but also there's no good way to know if any oil is "better." You'll definitely find options that look better in this way or that, but there's no credible indication of overall performance in your application that measures up to Ford's explicit approval.

That's the problem with non-approved oils. Statistically, there HAVE to be a lot of cases where there's a better option than the spec oil. There's just never a good way to know because no one ever even attempts OE-level testing.
 
I have 16 quarts of Valvoline Synpower 20w50 that I can send you. Just shoot me a pm with your shipped price if interested.
 
Originally Posted By: Merkava_4
Originally Posted By: Fatboymoe
I have a question. Has the dealer serviced the the car before the bearing let go ? The reason I ask is because I had a local Ford dealer service my EcoBoost F150 and after paying for the Motorcraft full synthetic 5w30, they put in bulk 5w20 instead.


That's my suspicion as well. Somehow 5W-20 wound up in that motor.


Do you really think Ford is going to replace an engine with a spun bearing and NOT do an oil analysis checking for such things as an oils viscosity????
18.gif
 
Last edited:
Originally Posted By: SatinSilver
I have 16 quarts of Valvoline Synpower 20w50 that I can send you. Just shoot me a pm with your shipped price if interested.


I appreciate the offer but I think I'll pass. Just trying to get rid of the stuff? lol

Originally Posted By: d00df00d
Originally Posted By: CJs06
Originally Posted By: crazyoildude
I don't think the oil was to blame if it was the correct viscosity.. That oil is used in lots of those with zero problems..


To be clear, I'm not blaming the Motorcraft oil for the bearing failure (I don't think lack of lubrication is as simple as a "bad" oil); the new engine has Motorcraft in it and I'm not worried, just nervous driving the car hard. I'm exploring better oil options for my engine in both price and performance. So far the only argument against that is to not befuddle the car's warranty by using an oil that Ford doesn't approve of.

Not only that, but also there's no good way to know if any oil is "better." You'll definitely find options that look better in this way or that, but there's no credible indication of overall performance in your application that measures up to Ford's explicit approval.

That's the problem with non-approved oils. Statistically, there HAVE to be a lot of cases where there's a better option than the spec oil. There's just never a good way to know because no one ever even attempts OE-level testing.


Worth a try seeing what information is out there, on BITOG of all places. Guess I'll just look for decent prices on Motorcraft 5w-50.
 
Last edited:
In-warranty, I would consider an approved oil a necessity.

Outside of warranty, I would run Amsoil.

In-warranty, I would definitely get away from that lame Motorcraft oil to a better approved oil.
 
Originally Posted By: DoubleWasp
In-warranty, I would consider an approved oil a necessity.

Outside of warranty, I would run Amsoil.

In-warranty, I would definitely get away from that lame Motorcraft oil to a better approved oil.


AMSOil meets the spec.
 
Originally Posted By: oil_film_movies
Amsoil probably meets the spec, just not officially and with certified certainty from an independent party.


How would you know?
 
From the owner of the car on the first page:

Originally Posted By: CJs06
Partially why I'm considering the Amsoil 5w-50 since it meets Ford WSS-M2C931-C (Mustang).
 
Originally Posted By: Fatboymoe
I have a question. Has the dealer serviced the the car before the bearing let go ? The reason I ask is because I had a local Ford dealer service my EcoBoost F150 and after paying for the Motorcraft full synthetic 5w30, they put in bulk 5w20 instead.

How did you find out? Viscosity test, or you looked in there while they were working on it?
 
Status
Not open for further replies.

Similar threads

J
Another Ford 2.7l Wet Belt Question
Replies
17
Views
1K
relentless044
NibbanaBanana
Same Car Same Engine, Different Country Different Oil
2
Replies
38
Views
2K
perkz
S
Does thickness of the oil matter on a performance application?
2 3
Replies
45
Views
2K
Stopsign32v
C
Town Car 4.6 oil choice
2 3 4
Replies
63
Views
1K
tired
L
Land Rover Evoque
Replies
2
Views
671
lemmy999
Back
Top Bottom