Go to oil for 2.7

[danmoochie]

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.

Spot on, great post!

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[Bill W]

Just my view, cause you cannot go wrong with most any choice.
While GTL oil is group 3 oil, it does not have the drawbacks of traditional group 3 with crude impurities. GTL was given the group 3+ nickname. Shell makes its GTL at Pearl refinery that Pennzoil Platinum uses. PAO group 4 has one drawback, it does not blend well with the additive package and needs a portion of the base oil either group 3 or 5 to allow the additive package to blend. That has to do with the polarity of the base oil. The real trick to motor oil is balance. The only real test is a UOA to see the results of wear.
European oil has to meet both diesel and gas engine requirements. That causes issues with detergents and dispersants needed for diesel that is unbalanced for gas engines.

 

[Alaska_Wolf]

Mobil 1 all the way.

 

[burbansk]

Amsoil Signature Series 5W-30 in both my 2024 Ranger 2.7L and my 2015 F-150 3.5L Ecoboost engines. My F-150 just turned 139,000 miles with no known issues so far.

 

[waffleso_0]

I am no expert at all. I've been using vavoline full synth and I heard that whatever you choose you need to stick to it. Now, I have only done two oil changes on my 8k miles ranger. Would changing my oil brand now cause problems?

I thought vavoline was really good but again, I'm not an expert and never really did any of my oil changes until purchasing this truck.

 

[stemplar]

I am no expert at all. I've been using vavoline full synth and I heard that whatever you choose you need to stick to it. Now, I have only done two oil changes on my 8k miles ranger. Would changing my oil brand now cause problems?

I thought vavoline was really good but again, I'm not an expert and never really did any of my oil changes until purchasing this truck.

I don’t think you need to stick to a specific brand at all. I wonder if that notion is a throw back to back in the 80’s when synthetics were new(er) there was talk of sludge build-up or some such, possibly related to the ester-based and additive package incompatibility (or insolubility)?

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