best oil for Ford 2.7L V6

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Aug 31, 2020
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17
thought I'd ask the experts.....ordered a 25' Bronco with the 2.7L V6
not interested in HP or speed, I want longevity.
which full synthetic and weight ?
sincerely and THANKS
šŸ»
 
How often do you plan to change the oil? When the OLM tells you to?

Mobil1 Truck and SUV would be high up on my list.
 
I always change @ 3000 miles with synthetic
Bit of a waste, but if that's your mantra, then there is no "best" because any syn changed at such short intervals will not manifest into any distinguishable difference for your engine. Might as well buy the least expensive oil that meets the spec; anything more is just doubling down on waste.
 
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If you are going to change every 3000, then literally any oil meeting the Ford spec will work. Zero need to change at 3000 miles.

I've got a 2016 F150 with the 2.7. Nearing 130,000 miles. Used Motorcraft through the powertrain warranty, then switched to Castrol Magnatec. With that discontinued I've moved to one of the Pennzoil Synthetics depending on pricing. I do oil changes when the OLM says 25% remaining, which being honest is bascially a mileage counter on the truck. Pretty universally around 7500 miles.
 
I always change @ 3000 miles with synthetic

thanks gents (y)
3K miles? No need for Synthetic. You can do a lot worse than this.
$3.45/quart, and you can double the OCI.


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I always change @ 3000 miles with synthetic

thanks gents (y)
If you change it that often, it doesn't really matter what you use as long as it's at least a 5w-30 grade and meets API SP specs. WSS-M2C961-A1 aligns with API SP, BTW.

As mentioned earlier, Costco Kirkland brand synthetic is cheap, easy to get and meets the spec.
 
@CarbonSteel did a lot of research on this and he runs Mobil 1 ESP 0w-30. I would search for his content on here and at Bronco6g.com . I run Mobil one Advanced Fuel Economy 0w-30 in my two 2.7 Broncos because I live in a cold place and it carries the ford WSS-M2C-963-A1 approval. I don’t use ESP because I have a warranty paranoia which is probably unjustified. I only have 22,000 on my highest time Bronco but wear metals are looking pretty good in mine even on 7000 mile intervals and the oil stays in grade, just barely. You can search for my ā€œuseless $30 spectrographic analysesā€ on here.

Despite its lack of WSS approval, I concede that ESP is better because it stays in the middle of 30 grade longer and has a higher High temp high shear rating. It probably just doesn’t have the ford spec because it’s not thin enough to be ā€œresource conservingā€ for government requirements and/or Mobil didn’t want to pay for the approval fees since it’s intended for engines with gasoline particulate filters, which ford doesn’t make in the US yet (changing next year with the 2.0 L Maverick getting a GPF).

Some 2.7’s like CarbonSteel’s do exhibit fuel dilution > 2%. This could be driving habit related, neither of mine have shown that on gas chromatography UOA’s yet. I would do a UOA through Amsoil/Oil Analyzers or Speediagnostix to see if you have fuel dilution, and if not you can you can use a 5-7000 mile intervals pretty comfortably I think.

With that said, I'm pretty sure there are F-150's using the same 2.7L motor that have gone 400,000+ miles on Motrorcraft synthetic blend with 10,000 mile changes and are still kicking so at the end of the day all this fretting could be somewhat moot.
 
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At 3000 mile intervals, I think an easier question is what not to use. HPL, Amsoil, The premium oils. Course it's your choice your vehicle!

Super nice ride, those Broncos are awesome šŸ˜Ž
 
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