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Old 09-18-2013, 11:38 AM   #1
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5w50 to 10w40

So it's about time to change my oil again.

I have a track pack car and I put mc full synthetic 5w50. However I know it's not a very good oil.

I want to go with royal purple 10w40 hps.
1) who has made this change over
2) have your cars been behaving with the change? Any problems
3) has anyone heard of issues with making this move
4) is 10w40 a bad idea cause if our cold winters. My car is garaged

Thank you any input is much appreciated
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Old 09-18-2013, 01:34 PM   #2
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I'm coming up on my first 3k TP oil change, so I can't recommend a proven alternative to Motorcraft or changing of weight. But, I would think as long as you adhere to the recommended API (SN) Certification and the Ford Specification of WSS-M2C931-B (Track Pack engines) for warranty coverage, you could use any brand you wish. From what I hear and have read, the Motorcraft 5w-50 is a ConocoPhillips product.

https://www.fcsdchemicalsandlubrican...0Synthetic.pdf

http://royalpurpleconsumer.com/asset...log_032613.pdf
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Old 09-18-2013, 04:08 PM   #3
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Here's a good read with excellent info and data to back it up. Motorcraft 5w-50 would be the last thing I'd use though.
Official GT 5.0/Boss 302 UOA thread - SVTPerformance
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Old 09-18-2013, 08:09 PM   #4
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Ok I'm gonna take the leap of faith. Buying RP 10w-40 hps
Lets she his this goes
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Old 09-18-2013, 11:12 PM   #5
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I made the change 500 miles ago from redline 5-50 to rp hps 10-40 and really got 2mpg more if I drive easy compareing both oils. I'm running 10# of boost (vmp) and no issues or noise's with rp hps.
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Old 09-19-2013, 08:19 AM   #6
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I made the change 500 miles ago from redline 5-50 to rp hps 10-40 and really got 2mpg more if I drive easy compareing both oils. I'm running 10# of boost (vmp) and no issues or noise's with rp hps.
500 miles still going strong.
Yeah I'll take that lol

I'll let u know what I think
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Old 09-19-2013, 12:19 PM   #7
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I also have the TP. How many miles did you wait until you did your first oil change?
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Old 09-19-2013, 03:17 PM   #8
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I also have the TP. How many miles did you wait until you did your first oil change?
500, then at 3000 then at 6000 just a bit over 9000 now
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Old 09-21-2013, 08:41 PM   #9
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500, then at 3000 then at 6000 just a bit over 9000 now
So you mean I should not wait the dealer suggested 10k miles?

Only joking......

Thanks for the tip. Already at 1k miles. Was planning on changing at 3k. These motors are we broken in from the factory but better safe than sorry.
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Old 09-21-2013, 08:52 PM   #10
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So you mean I should not wait the dealer suggested 10k miles?

Only joking......

Thanks for the tip. Already at 1k miles. Was planning on changing at 3k. These motors are we broken in from the factory but better safe than sorry.
Lmao!!! Bro it's just not worth risking ur car. Get it changed every 3-4k for sure. Dealers don't know Nothen
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Old 09-21-2013, 09:05 PM   #11
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Lmao!!! Bro it's just not worth risking ur car. Get it changed every 3-4k for sure. Dealers don't know Nothen
Yea seriously!! I use the Mobil1 extended performance which supposedly used 15k intervals... I'm at 3,800 of use and it's already dark, I'm changing it tomorrow... I don't DD the car so this was all in 1 year, so as a rule if thumb, I'll just change it once a year
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Old 09-23-2013, 07:11 PM   #12
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Since we're on the oil subject here. JLT Oil separator. Is it worth the time and money or does it even make any difference added HP?

Will it void the warranty?
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Old 09-23-2013, 07:59 PM   #13
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Since we're on the oil subject here. JLT Oil separator. Is it worth the time and money or does it even make any difference added HP?

Will it void the warranty?
I'd endorse the JLT Oil Separator, at least on the Passenger side. I was amazed how much oil mine collects, that's Not coating my Throttle Body and Intake Manifold. It was one of the 1st things I put on my new '13 GT, and although they don't give them away; for what it does, I think it's well worth the price.

And I'm sure there isn't any Warranty issues, they even come w/ Ford connectors, so it's a simple 'Plug & Play'.
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Old 10-06-2013, 10:45 PM   #14
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Originally Posted by Red Stallion 11 View Post
Since we're on the oil subject here. JLT Oil separator. Is it worth the time and money or does it even make any difference added HP?

Will it void the warranty?
Oh yeah this is totally worth it!

---------- Post added at 11:45 PM ---------- Previous post was at 11:44 PM ----------

Ok
Just got paid, just bought the 10w40.
I'll let u guys know how it feels after I change it
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Old 10-07-2013, 06:06 PM   #15
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I have a 2011 Brembo...im switching to Royal Purple too. Coming into the colder months should i use 5w-20 or 10w-40?
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Old 10-07-2013, 06:19 PM   #16
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I have a 2011 Brembo...im switching to Royal Purple too. Coming into the colder months should i use 5w-20 or 10w-40?
Where do you live bro?
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Old 10-07-2013, 06:38 PM   #17
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I have a 2011 Brembo...im switching to Royal Purple too. Coming into the colder months should i use 5w-20 or 10w-40?
You do know that Royal Purple is no longer a true synthetic? Are you driving the car in the Winter? If so the 5w-20 or a 5w-30 will be fine. I have two gallons of Amsoil 10w-30 if you're interested.
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Where do you live bro?
Connecticut
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Old 10-07-2013, 07:26 PM   #18
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You do know that Royal Purple is no longer a true synthetic? Are you driving the car in the Winter? If so the 5w-20 or a 5w-30 will be fine. I have two gallons of Amsoil 10w-30 if you're interested. Connecticut
i will prob drive the car until they put down that horrible liquid sodium chloride on the road. So prob just for another month. How much for the two gallons?
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Old 10-07-2013, 07:26 PM   #19
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You do know that Royal Purple is no longer a true synthetic? Are you driving the car in the Winter? If so the 5w-20 or a 5w-30 will be fine. I have two gallons of Amsoil 10w-30 if you're interested.

Connecticut
I had 5w50 all last winter so I'm sure your fine even with 10w40
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Old 10-08-2013, 04:56 AM   #20
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How much for the two gallons?
$60.00. All you would need is a filter for a complete oil change with the best oil on the market. 10w-30 is what I've been running.
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Old 10-08-2013, 08:35 AM   #21
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I had 5w50 all last winter so I'm sure your fine even with 10w40
5w50 is a lot thinner oil when cold compared to 10w40.
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Old 10-09-2013, 01:56 PM   #22
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5w50 is a lot thinner oil when cold compared to 10w40.
So are you saying its a bad idea for a Long Island winter?
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Old 10-09-2013, 03:44 PM   #23
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So are you saying its a bad idea for a Long Island winter?
I live in Indiana and I'm sticking to the recommend 5w. I don't know for fact it will hurt it, but why chance it.
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Old 10-09-2013, 03:48 PM   #24
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I live in Indiana and I'm sticking to the recommend 5w. I don't know for fact it will hurt it, but why chance it.
Because I feel like I'm taking a much bigger chance by using mc 5w50. It's garbage
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Old 10-09-2013, 03:57 PM   #25
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Because I feel like I'm taking a much bigger chance by using mc 5w50. It's garbage
10w40 is a thicker oil. The first # represents the oil weight when cold. The second represents the weight when upto temperature.
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Old 10-09-2013, 04:04 PM   #26
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10w40 is a thicker oil. The first # represents the oil weight when cold. The second represents the weight when upto temperature.
I understand that sir.
My concern is the quality if the mc oil.
If you read the reports it's by far the worst synthetic.

I love my Stang. Can't put garbage in it.
But if your telling me it won't start in winter then I won't change it and ill keep the crapy mc oil
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Old 10-09-2013, 04:11 PM   #27
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I understand that sir.
My concern is the quality if the mc oil.
If you read the reports it's by far the worst synthetic.

I love my Stang. Can't put garbage in it.
But if your telling me it won't start in winter then I won't change it and ill keep the crapy mc oil
I use regular valvoline in all my vehicles. Both my Ford trucks are over 300k with no engine work. Synthetic oils are over rated, unless you trying to squeeze every last hp out of the engine on a daily basis.
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Old 10-09-2013, 04:16 PM   #28
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I use regular valvoline in all my vehicles. Both my Ford trucks are over 300k with no engine work. Synthetic oils are over rated, unless you trying to squeeze every last hp out of the engine on a daily basis.
Sir are you saying that alllll these studies, all these big name builders using amsoil and or royal purple is all a rouse?

If it is that's one hell of a mind game.

On a dude note I'm happy for you that your vehicles have run for so long. It's a blessing to still have the car or truck u love
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Old 10-09-2013, 05:10 PM   #29
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Synthetic oils are over rated, unless you trying to squeeze every last hp out of the engine.
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Old 10-09-2013, 05:19 PM   #30
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Originally Posted by Darkside View Post
So it's about time to change my oil again.

I have a track pack car and I put mc full synthetic 5w50. However I know it's not a very good oil.

I want to go with royal purple 10w40 hps.
1) who has made this change over
2) have your cars been behaving with the change? Any problems
3) has anyone heard of issues with making this move
4) is 10w40 a bad idea cause if our cold winters. My car is garaged

Thank you any input is much appreciated
As long as it's in warranty, I would use what Ford recommends. Something happens to the engine and they find out your using an oil not recommended, you will be fighting a losing battle to get your car fixed under warranty.
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Old 10-09-2013, 05:47 PM   #31
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As long as it's in warranty, I would use what Ford recommends. Something happens to the engine and they find out your using an oil not recommended, you will be fighting a losing battle to get your car fixed under warranty.
And when was the last time someone lost an engine due to using different oil? And your giving out warranty advice while running a tune?
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Old 10-09-2013, 06:20 PM   #32
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I know auto manufacturers can make mistakes on building and engineering, but I don't think you can do wrong by running the recommended oil from ford. Surely ford has done enough testing on their oil to make sure it is "sufficient". That being said sufficient does not mean great, it will just do the job. I would think it would be fine to run any brand of oil you want unless ford specified an oil not to use.
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Old 10-09-2013, 07:43 PM   #33
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I know auto manufacturers can make mistakes on building and engineering, but I don't think you can do wrong by running the recommended oil from ford. Surely ford has done enough testing on their oil to make sure it is "sufficient". That being said sufficient does not mean great, it will just do the job. I would think it would be fine to run any brand of oil you want unless ford specified an oil not to use.
Dude, it's simple, it's THEIR oil! Lol of course they will run what they manufacture. Just like the piece of crap oil filter they make. To each his own but that's like my barber saying, listen I got the best shaving cream, I recommend it. Ps, I make it at home lol

---------- Post added at 08:43 PM ---------- Previous post was at 08:41 PM ----------

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And when was the last time someone lost an engine due to using different oil? And your giving out warranty advice while running a tune?
Thank you bro.
Some people had me second guessing myself, the oil has arrived.
I just can see how going to a top notch synthetic could be bad, just cause I went from 5w50 to 10w40.

I heard so rumors that the diff weight could effect the cams. U ever heard of that?
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Old 10-09-2013, 07:56 PM   #34
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http://www.svtperformance.com/forums...pens-here.html


Have a good read everyone.
This is good education
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Old 10-09-2013, 08:03 PM   #35
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And when was the last time someone lost an engine due to using different oil? And your giving out warranty advice while running a tune?
I didn't say I wasn't running a tune. BUT I sure am not going to run a brand of oil that is not recommended by the manufacturer of my car.
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