5w50 Motorcraft oil change

[Loweredon33s]

It’s oil change time and I’ve decided to do something different. It’s factory oil for the RS and HPP Mustang so I’m gonna try it in my truck that doesn’t do truck things.

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[diesel924]

Looks like a solution in search of a problem.

 

[JasonTremor]

I've been looking at the 5w40 options as they cost less and some even have the SN+ or SP formulation specs like the Motorcraft 5w50 now.

Not to derail the focus of the post, but could you share some info on the intake? If you already posted elsewhere, a link would be cool.

 

[jsphlynch]

 

[Loweredon33s]

I've been looking at the 5w40 options as they cost less and some even have the SN+ or SP formulation specs like the Motorcraft 5w50 now.

Not to derail the focus of the post, but could you share some info on the intake? If you already posted elsewhere, a link would be cool.

I keep 5w50 in stock and get it for a decent price so I thought I’d try it out.
this intake? It’s a HAI. We call it Whale Dick

 

[JasonTremor]

Reminds me of what they called one of the Honda intakes back in the day, lol. Looks cool!

 

[Loweredon33s]

Reminds me of what they called one of the Honda intakes back in the day, lol. Looks cool!

Thanks, yeah it’s a short Ram I guess.
I like it! Made it a few weeks back just to see how it would do.

 

[JohnnyO]

Get a used oil analysis when you change it out and see what it tells you.
Using XYZ brand oil "because that's what grandpappy used in the Farmall plowing the back 40 for 50 years and never had a problem" isn't good enough any more.

You coming to Carlisle next month?

 

[Loweredon33s]

Get a used oil analysis when you change it out and see what it tells you.
Using XYZ brand oil "because that's what grandpappy used in the Farmall plowing the back 40 for 50 years and never had a problem" isn't good enough any more.

You coming to Carlisle next month?

I had a sample done last year with Motorcraft 5w30 blend and aside from some gas it was great. The dilution they said made the oil into 5w20. We have had really good results with 5w50 through the years on many very high powered cars. I noticed that it was the factory oil on HPP Mustang yesterday, I had already known about RS coming with it and it’s the “track use” oil on Mustang ecoboost. So… I’m trying it. I might get an analysis done to compare it to the previous. That’s a good idea.

Carlisle is a definite want, just have to see if I can make it happen.

 

[Zvedza]

i tried 0w-40 in the 3.5 ecobewst for about 5k miles
Ran about the same but noticed the oil pump both low and high stage was a few psi higher. Dunno if thats within range for it or if thatll contribute to it croaking sooner. Same temps, but took longer to get up to temp fwiw.

Personally in the camp or changing oil sooner or running a slightly thicker oil, i dont think ford has tighter tolerances than amg and they spec wide ranges of oil.

As long as its a Group IV/V oil and changed often <5k miles these should last a while.

Interesting thread though, keep us posted op.

 

[Wang.S]

My unscientific opinion believes that if you're going to check off more boxes with 50 oil than OEM specifications, you'll probably be OK (at least for the duration you own the vehicle)
Things like higher temps, longer drives and higher power output, you may see some benefits that outweigh the negatives. But in the same breath, be prepared for other probelms it may create. And of course, warranty considerations need to be considered if you care about that sort of thing. Its not hard for the OEM to know if the wrong weight of oil was used.

 

[Rp930]

GT500 uses 5w50 but it’s designed for it. Oil pressure warm is 125lbs. Not sure the Ranger oil pump and drive is up for that.

Not to mention the hp loss trying to bypass that oil.

 

[Dgc333]

GT500 uses 5w50 but it’s designed for it. Oil pressure warm is 125lbs. Not sure the Ranger oil pump and drive is up for that.

Not to mention the hp loss trying to bypass that oil.

FWIW, the 2.3 Ecoboost in the Mustang recommends 5w-30 for every day driving but recommends 5w-50 for track use. The 2.3 Ecoboost is rated for 20 more HP when you order the High Performance Package and it recommends 5w-50 for all driving conditions. There is nothing mechanically different in these engines that would warrant different oil viscosities.

Having been an engineer for the past 48 years I can tell you unequivocally that engineering is all about compromise. In the case of motor oil the lowest viscosity that still meets the durability requirements is chosen to help meet the corporate economy requirements. In the case of low volume performance versions of vehicles or if the vehicle is used in a more severe conditions like track days the compromise will be tipped toward durability over economy because those vehicles have less impact on the corporate fuel economy requirements. I would not be surprised if the marketing folks nixed recommending 5w-50 in the Ranger for towing because it would put the Ranger in a bad light if the manual was telling folks to use different oil if they were hooking up a trailer.

 

[Rp930]

FWIW, the 2.3 Ecoboost in the Mustang recommends 5w-30 for every day driving but recommends 5w-50 for track use. The 2.3 Ecoboost is rated for 20 more HP when you order the High Performance Package and it recommends 5w-50 for all driving conditions. There is nothing mechanically different in these engines that would warrant different oil viscosities.

Having been an engineer for the past 48 years I can tell you unequivocally that engineering is all about compromise. In the case of motor oil the lowest viscosity that still meets the durability requirements is chosen to help meet the corporate economy requirements. In the case of low volume performance versions of vehicles or if the vehicle is used in a more severe conditions like track days the compromise will be tipped toward durability over economy because those vehicles have less impact on the corporate fuel economy requirements. I would not be surprised if the marketing folks nixed recommending 5w-50 in the Ranger for towing because it would put the Ranger in a bad light if the manual was telling folks to use different oil if they were hooking up a trailer.

Good to know.

 

[diesel924]

Low tension piston rings don't like thick oil, but hey, you do you.

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