f-150 2.7 Eco-Boost Sheared 5W-30 down to 5W-20. Which oil to buy?

[ARCOgraphite]

No need 5w in the Carolinas.

Was I sleeping? What is RelaDyne? Maybe a cherished some dubbya thirty will do O.K.
Many will state say on these pages it's more about the HTHS anyway

 

[tobylester]

No need 5w in the Carolinas.

Was I sleeping? What is RelaDyne? Maybe a cherished some dubbya thirty will do O.K.
Many will state say on these pages it's more about the HTHS anyway

RelaDyne is the company that owns shell/chevron and others. Duramax is their house brand oil so I thought it would be ok.

 

[FTTSHO]

Hello

I am essentially motor oil ignorant. My 2023 F-150 2.7 Ecoboost sheared Reladyne Duramax 5W-30 down to 8.7 after only 3,100 miles. I take mainly short trips and lots of idling. What oil would you all recommend that would stay in within the 5W-30 range? I have read about euro oils....I was considering and pennzoil or castrol euro oil, but wasn't sure. Any recommendations?

Thanks in advance.

toby

Sounds like fuel dilution is the main cause of the oil getting thin. Try some Mobil 1 ESP 5w-30. Or Mobil 1 0w-40, it should shear down to a 30 weight range.

 

[kschachn]

Mobil 1 0W-40 has not exhibited an undue tendency for the VII to shear. That may have been an issue a while back but not any more.

 

[dkryan]

Does anyone else have a problem with any other data in the UOA other than the viscosity?

I understand it was only a 3,100 mile OCI but with short tripping and lots of idling, to me the wear numbers and fuel dilution look pretty darn good.

 

[BC1]

RelaDyne is the company that owns shell/chevron and others. Duramax is their house brand oil so I thought it would be ok.

I have never heard of RelaDyne. Are you implying this company owns Shell and Chevron or distributes their products?

 

[dkryan]

I have never heard of RelaDyne. Are you implying this company owns Shell and Chevron or distributes their products?

They are a major Cincinnati based corporation:

“Lubricant and Fuel Distributor Providing Unparalleled Solutions and First-Class Service​

RelaDyne, Inc., headquartered in Cincinnati, Ohio, is the established leader in lubricant sales, distribution, equipment reliability services, and value-added services.

https://reladyne.com/

 

[dkryan]

As of December 31, 2024, Reladyne had gross revenue of over $4.2 billion and 3,700 employees.

I have seen their bulk oil tanker trucks in several car dealerships throughout Ohio and other midwestern states.

In fact, I was at a Toyota dealership one day when a Reladyne truck pulled into the servicebay area and began filling their bulk oil tanks using two separate hoses.

After the driver disconnected the hoses he walked to the service desk.
I intercepted him and asked “Let me guess, only two viscosities offloaded: 0w-20 and 5w-30?”

He said, “yep! Every time!”

That’s not to say the dealership didn’t have cases of 0w-16 in bottles to be used.

However, I did note at least three vehicles that were 2023 or 2024 models being serviced and all three had an oil change using the pull down bulk oil hose dispenser.

 

[edyvw]

I'd use M1, 5W-30EP which is an excellent oil, and change at the 5K mark, in fact this is what I do in my F150. Meets the Ford spec, which is nothing special, but good to know. The 0W oils are all more likely to shear and not the direction you want to go on an Ecoboost, more viscosity not less is the right direction. More than that, 'some' of the Euro oils may contain a higher level of calcium and ZDDP. Which is generally a good thing, but not for direct injection engines subject to LSPI. Your 2.7 is a direct injection engine (with secondary port injectors)

Also of note, since your engine has a wet Kevlar oil pump belt, using the Ford spec (or similar), along with frequent oil changes, is a good way to ensure you don't experience premature belt degradation. NOTE: Wet belts hate oil contamination.

You could also consider something like Delvac 1 ESP (M1 TDT 5W-40) or Rotella T6 5W-40 or Castrol Edge 5W-40 all have lower calcium and would protect the EB engine very well, without causing any oil pump belt issues.

2.7 should not have LSPI issues. Also, MB229.52 has an LSPI test, though on the MB engine, but then, API also does LSPI testing on the Ford 2.0 EcoBoost for its purposes and not for each specific engine.
ZDDP also mitigates the possibility of LSPI. ESP 0W30 will be above the API limit on phosphorus, which is good. Calcium level will be higher than API SP, somewhere around 1700ppm, but then it has higher ZDDP too.

 

[dkryan]

I have never heard of RelaDyne. Are you implying this company owns Shell and Chevron or distributes their products?

Reladyne does not own Shell or Chevron.

However, Reladyne is an authorized distributor of both Shell and Chevron products throughout southwest Ohio and beyond.

 

[Brian123]

Hello

I am essentially motor oil ignorant. My 2023 F-150 2.7 Ecoboost sheared Reladyne Duramax 5W-30 down to 8.7 after only 3,100 miles. I take mainly short trips and lots of idling. What oil would you all recommend that would stay in within the 5W-30 range? I have read about euro oils....I was considering and pennzoil or castrol euro oil, but wasn't sure. Any recommendations?

Thanks in advance.

toby

How much did you pay for this Oil?

 

[tobylester]

Reladyne does not own Shell or Chevron.

However, Reladyne is an authorized distributor of both Shell and Chevron products throughout southwest Ohio and beyond.

Gotcha. Sorry for the correction. I’m traveling today and typed that at a red light lol.

 

[tobylester]

How much did you pay for this Oil?

I can’t change my oil due to where I live, which really sucks. So I took it to take five oil change and that’s what they use. I’m purchasing oil today and having an actual mechanic change it in the morning. I really miss changing my own oil believe it or not but my wife just doesn’t understand it.

 

[JAG]

Mobil 1 0W-40 has not exhibited an undue tendency for the VII to shear. That may have been an issue a while back but not any more.

How do you define undue tendency? How did you come to the conclusions that there may have been an issue before but now it’s definitely not an issue? What do you conclude from the shear stability tests that Lakespeed Jr and HPL did on the various Mobil 1 0W-40 oils?

 

[kschachn]

How do you define undue tendency? How did you come to the conclusions that there may have been an issue before but now it’s definitely not an issue? What do you conclude from the shear stability tests that Lakespeed Jr and HPL did on the various Mobil 1 0W-40 oils?

Only to the extent that you posted here, and in that thread.

J

Post in thread 'New Mobil 1 C40 GT 0W-40'

Feb 22, 2025

We obviously can't ignore the fuel, but that's 10.07% visc loss, which is considerably more than we saw with the KRL test.

On the bright side, at least with some types of VIIs, it was found that the %HTHS loss was roughly 1/2 of the %KV100 loss. I did a quick search for the study and didn’t find it but did find this excellent discussion from 2012 on BITOG. Thread
It would be good if someone finds a study so we can see the dependence on the VII type. I suspect at least some of the more shear stable M1 0W-40 variants use star polymer VIIs or some other type more shear stable...

• JAG

• 

 

[tobylester]

I had to make the call, so I bought some mobil ESP 0W 30. Having the oil changed tomorrow. I’m going to retest the mobil and see how it does.

I sure do appreciate all the advice and help.

 

[kschachn]

I had to make the call, so I bought some mobil ESP 0W 30. Having the oil changed tomorrow. I’m going to retest the mobil and see how it does.

I sure do appreciate all the advice and help.

One thing you need to consider too is the accuracy of the lab.

Also if you send in a sample for a VOA then you know where you're starting.

 

[KlooksKleek]

I had to make the call, so I bought some mobil ESP 0W 30. Having the oil changed tomorrow. I’m going to retest the mobil and see how it does.

I sure do appreciate all the advice and help.

Just put Mobil ESP 0W-30 today for the first time in my new Subaru Outback with the 2.4T engine. Good luck with yours!

 

[hemioiler]

Mobil 1 0W-40 has not exhibited an undue tendency for the VII to shear. That may have been an issue a while back but not any more.

It sheared down to 11.96 in my truck when I used it which puts it into 0W-30. That was 2022 though.

 

[Snagglefoot]

For the OP’s case, pick one of the many recommendations here and do another test afterward. Good luck.