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Oil pressure too high?

2015 Silver GT

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I will disagree that 10w-30 does not damage the engine. You won't notice it in the short term but over many years of use you are shorting the engines lifE.
I ran 10W-30 in my 2011 for years as did many others. No damage was done.
Being that the motor has oil squirters I wouldn't run anything too thick, when at idle and lower pressures it's harder to lubricate the engine
Dude just stop with this B.S. These cars do not have oil squirters. Haven't had them for years now.
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Ruby red GT

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I will disagree that 10w-30 does not damage the engine. You won't notice it in the short term but over many years of use you are shorting the engines life.

What I don't understand the motivation for using 10w-30 when it provides ZERO benefit over 0w-30 or 5w-30 and potentially causes more wear.
I ran 10w-30 due to lack of availability of 5W-30 where I was living at the time not for any other reason. I still stand by my my statement and experiences that its not going to cause harm to the engine.
 
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dgc333

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I ran 10W-30 in my 2011 for years as did many others. No damage was done.
I ran 10w-30 due to lack of availability of 5W-30 where I was living at the time not for any other reason. I still stand by my my statement and experiences that its not going to cause harm to the engine.
How do you know it's not causing damage or harm? Unless you do regular oil analysis over the life of the car and you have access to data for a similar car using 5w-30 or 0w-30 over the same amount of time to compare to you don't know.

As I previously stated in the short term you won't likely see any down side and I would contend that a 2011 could only be part of the short term since not enough miles and start cycles would have been realized.

With all the data out there that shows that an engine using 5w-30 or 0w-30 shows less wear compared to 10w-30 and they provide the same protection at operating temperatures why would you chose to use 10w-30 or recomend it to others.
 

madweazl

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I ran 10W-30 in my 2011 for years as did many others. No damage was done.


Dude just stop with this B.S. These cars do not have oil squirters. Haven't had them for years now.
You sure about that? Bad information is worse than none. This article has info to the contrary.
 
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Ruby red GT

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How do you know it's not causing damage or harm? Unless you do regular oil analysis over the life of the car and you have access to data for a similar car using 5w-30 or 0w-30 over the same amount of time to compare to you don't know.

As I previously stated in the short term you won't likely see any down side and I would contend that a 2011 could only be part of the short term since not enough miles and start cycles would have been realized.

With all the data out there that shows that an engine using 5w-30 or 0w-30 shows less wear compared to 10w-30 and they provide the same protection at operating temperatures why would you chose to use 10w-30 or recomend it to others.
I didn't recommend that he use 10w-30 I just said it will not damage his engin based off of my experiences with my 2011. When I tore it down to put in forged internals my block just needed a slight hone and showed no signs of excessive wear.
 

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GT Pony

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Every engine oil is too thick until warmed up to operating temps.
Higher pressure does not equal higher FLOW. Lower pressure with higher flow is what you want.
To add ... these engines have a positive displacement Gerotor gear type oil pump. So as long as the pump isn't in pressure relief, then the oil flow volume is basically the same - until the oil pump goes into pressure relief. It just takes more pressure to pump the same volume of thicker oil.

https://en.wikipedia.org/wiki/Gerotor

If I was going with something thicker when hot, it would be a full synthetic 5W-30.

The only way to get higher flow at lower pressure would be to make the whole oiling system less restrictive, which isn't practical.
 
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2015 Silver GT

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How do you know it's not causing damage or harm? Unless you do regular oil analysis over the life of the car and you have access to data for a similar car using 5w-30 or 0w-30 over the same amount of time to compare to you don't know.

As I previously stated in the short term you won't likely see any down side and I would contend that a 2011 could only be part of the short term since not enough miles and start cycles would have been realized.

With all the data out there that shows that an engine using 5w-30 or 0w-30 shows less wear compared to 10w-30 and they provide the same protection at operating temperatures why would you chose to use 10w-30 or recomend it to others.
I did do regular oil analysis and shared them in this thread along with many others.
http://www.*******************/foru...l-GT-5-0-Boss-302-UOA-thread&highlight=amsoil
The above is from SVT Performance. It's a long thread and a good read but for some reason it won't let me copy and paste the link.
You sure about that? Bad information is worse than none. This article has info to the contrary.
I've had my hands on one back in the Spring during a tear down and it did not have squirters. I don't know anything about that article. I have pics from it.
 

GT Pony

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The draw back is too much pressure can cause the oil filter bypass valve to open and round unfiltered oil through the filter.
The filter's bypass valve only operates based on the pressure drop across the oil filter due to the oil flowing through the filtering media. It has nothing to do with the oil pressure read-out you see on the dash.
 

jkstang78

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My cold start ups are pretty high to. IN the 80+ range. I noticed this ever since I went to Ford for the first oil change. But after it warms up and I drive it around it does drop down to around 25 psi.
 

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madweazl

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A bunch of misinformation in this form haha. Mine sure does have oil squirters
 

ralph7

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Almost nine years later, Is this a record?
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