Go to oil for 2.7

[Roguescholar]

I’m curious what the source of your assertion is? I just googled trying to find it and the tests I found actually came to the opposite conclusion. I’m not arguing one way or the other; just looking for your source.

I’ve seen a lot of head to head comparisons between Pennzoil Ultra Platinum and Amsoil. Amsoil is likely the better overall oil, as it tends to produce marginally less wear on engine components, particularly in high performance applications, due to its low NOACK volatility.

That said, I think Pennzoil Ultra Platinum is better formulated specifically for direct injected engines due to its resistance to evaporative loss. With the 2.7L EcoBoost being direct injected (dual injection) and having a wet belt, I would be more concerned about sludge buildup and wet belt degradation (which is more of a chemical issue than a friction issue) than marginal differences in wear on piston rings, bearings, and other components.

If your particular use case exposes the engine to higher than normal wear, such as doing a lot of towing, then Amsoil would probably be the better choice. But for the average Ranger 2.7L owner, I think Pennzoil Ultra Platinum is the way to go.

However, changing your WSS-M2C961-A1 full synthetic oil every 3,000 to 5,000 miles is going to have a much bigger impact on the life of your wet belt then the specific brand of oil you run.

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[Roguescholar]

This is good information! What isn’t mentioned are Group III bases, perhaps because they’re technically not synthetic like PAO or Ester bases, but can be refined to the point of being called “synthetic” (at least here in the US, where synthetic has largely been reduced to a marketing term). Group III are cheaper, have additive compatibility similar to the PAO’s, but lack the chemical stability of true synthetics. A very popular Group III oil is Pennzoil “synthetic”.

100% Correct

I would say that while Group V oil does have significantly better chemical stability than Group III, the main benefit of that is the ability to run the oil longer between changes. However, for the 2.7L EcoBoost, that’s not advisable since, regardless of the oil you use, it'll still increase in acidity over time, which can further degrade the wet belt. This puts Group III and Group V on a much more even playing field since they should to be changed every 3,000 to 5,000 miles regardless.

 

[TurboRanger]

 

[Cabose-1]

I have been using Amsoil in my rangers since 2020. Still use it in my 2024.
Amsoil is what i use, i always recomend it.

 

[Chippewa76]

However, changing your WSS-M2C961-A1 full synthetic oil every 3,000 to 5,000 miles is going to have a much bigger impact on the life of your wet belt then the specific brand of oil you run.

^this!

 

[danmoochie]

Use Ford OEM full synthetic and remove doubt and long-term warrant issues. Pretty simple logic and being a former sales manager for Ford, it carries a lot of wight long term.

 

[Roguescholar]

Use Ford OEM full synthetic and remove doubt and long-term warrant issues. Pretty simple logic and being a former sales manager for Ford, it carries a lot of wight long term.

Are you saying that you’ve had experience with Ford or a Ford dealership violating the Magnuson–Moss Warranty Act and denying a warranty claim because the owner used non-Motorcraft WSS-M2C961-A1 oil?

 

[danmoochie]

Are you saying that you’ve had experience with Ford or a Ford dealership violating the Magnuson–Moss Warranty Act and denying a warranty claim because the owner used non-Motorcraft WSS-M2C961-A1 oil?

Did I come close to saying that LOL... no dude, don't put words in my mouth. All I stated was the obvious.

 

[Roguescholar]

Did I come close to saying that LOL... no dude, don't put words in my mouth. All I stated was the obvious.

I didn't put words in your mouth, I asking you a question about something you asserted. What doubt and long-term warranty issues are removed by only using motorcraft oil?

 

[stemplar]

Did I come close to saying that LOL... no dude, don't put words in my mouth. All I stated was the obvious.

Yes, you did. “Use Ford OEM full synthetic and remove doubt and long-term warrant issues.” If that doesn’t at the very least imply that there are warranty issues for not using ford-branded oil, I don’t know what does.

 

[danmoochie]

Yes, you did. “Use Ford OEM full synthetic and remove doubt and long-term warrant issues.” If that doesn’t at the very least imply that there are warranty issues for not using ford-branded oil, I don’t know what does.

all I am saying is if everyone always tries to figure out what for and how comes and what to use and what not to use, just stick with the OEM synthetic oil and NEVER have Ford question any issues with any warranty or non-warranty items. Ford absolutely will look at all repair orders, done at the dealership, or possibly ask YOU for records, when resolving issues. More so engine related. SOOOO if you do the service at the dealership or not, using their OEM oil does carry weight if done on schedule and all things being equal. Pretty simple comment.

 

[stemplar]

SOOOO if you do the service at the dealership or not, using their OEM oil does carry weight if done on schedule and all things being equal. Pretty simple comment.

so since you’re doubling-down on that, it sounds like the answer to @Roguescholar ’s question is “yes”, you do seem to have had experience with Ford or a Ford dealership violating the Magnuson–Moss Warranty Act and denying a warranty claim because the owner used non-Motorcraft WSS-M2C961-A1 oil.

 

[danmoochie]

so since you’re doubling-down on that, it sounds like the answer to @Roguescholar ’s question is “yes”, you do seem to have had experience with Ford or a Ford dealership violating the Magnuson–Moss Warranty Act and denying a warranty claim because the owner used non-Motorcraft WSS-M2C961-A1 oil.

lolol you are too much, what are you an attorney or something, whatever dude, take it for what it's worth.

 

[Lion77]

What oil do you all recommend for the 2.7 engines with the oil wet belt system.
Price doesn’t matter. I want to make sure I use the best there is for it. So wanting to see what your alls go to oil is. Before I change mine.

Why would you want to deviate from Motorcraft Full Synthetic? Their oil meets the new GF-7A spec, with the most significant improvents over the older GF-6 spec being LSPI ignition test on dirty oil vs just new oil, 33% reduction in cold cranking viscosity (less cold start wear) and reduction in timing chain wear.

Obviously MC oils are what all Ford Ecoboost Engines are developed and tested on, INCLUDING wet oil pump belt compatability.

Heck, even the RR Race truck just runs MC 5W-30 full synthetic and Shell 93 pump gas since its a production truck and shell is one of their sponsors.

Back when I had my 2016 Mustang GT I saw all kinds of people go down the "oil rabbit hole" only to find that in MOST instances their boutique oil was not outperforming factory MC FS or in some cases underperforming it. MC consistently did very well.

Here's the consideration most people miss: the biggest risk is not that you might not improve a little bit by changing oil suppliers, its that you may run into compatability issues that begin to manifest after the warranty period. Accelerating wear or causing belt issues is a lot worse than "not improving beyond factory full synthetic".

There is no "best oil either". But you wont have compatability issues or severe wear problems with factory full synthetic, that is fo sho. Everyone will tell you their choice is the best becuase its the one they made. But in the end, none of them have done anywhere near the durability testing that Ford did using their oil, so do you trust random people on the internet or the engineers that developed the 2.7L and have been doing that kind of testing for decades?

Factory spec oils are better than a lot of people realize. I used to be on the "use whatever or your favorite brand" bandwagon until I started looking at spreadsheets of UOAs compiled for the same makes from different owners running different oils. OE spec oils never did poorly, even if not always the absolute best. But I saw plenty of boutique oils perform poorly in certain driving conditions.

 

[Lion77]

Btw Rock Auto has MC FS for a great price. I pay $72 shipped for 7qts MC FS and filter. Way cheaper than the dealer that charges $130 for the same freakin oil.

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