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What brand of synthetic oil is everyone using?

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Whatever one is the cheapest and meets the Ford spec. Quaker State Ultimate Durability, Pennzoil Plati/Ultra Plati, Castrol GTX.

My last score was the Castrol and got it for $2.70/quart on Amazon. So I bought 25 qts. I can do an oil change for around $20.
 

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This ^^^^^^^^

I ran motorcraft synthetic blend in my 2011 for its entire 160,000 mile life and still going strong. But I recently switched to Valvoline Advance Full synthetic in both my 2011 f150 and 18 raptor.

What caught my eye on the Valvoline is that it is now API SP, ILSAC GF-6A, and meets Ford's new spec WSS-M2C961-A1. Which I thought was pretty cool. Couldn't find any other oil at the moment listed the same besides Motorcraft.
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Amsoil 5W-30 Signature Series... It was even tested specifically in the Ford F-150 3.5L Ecoboost.

I know it's their propaganda... But so far it's held true for me.

Source: Signature Series 5W-30 Synthetic Motor Oil ASL - AMSOIL. Scroll down to this section:

"Preserves Horsepower
The extreme durability of Signature Series Motor Oil helps your engine run stronger, for longer. We installed Signature Series 5W-30 Synthetic Motor Oil in a Ford* F-150* with a new 3.5L Ecoboost* engine to test its ability to protect turbocharged direct-injection (TDGI) engines from torque and horsepower loss during extended drain intervals up to 25,000 miles (40,200 km). Power sweeps were done at the beginning and end of the test to evaluate horsepower and torque retention. As the graph shows, Signature Series helped maintain engine performance throughout the 100,000-mile (160,934 km) test."


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2013 F150 Screw 3.5L Ecoboost Oxford White
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Mobil 1 oil and filter.
Also using Mobil 1, but I typically use whichever filter is included in the oil change bundle wherever I get the oil. Usually a Fram or K&N.
 
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I’ve probably told this story before so forgive me if it sounds familiar. My local AutoZone store is just across the parking lot from WalMart. WalMart always kicks their butt on Mobil 1 oil pricing. I always walk in WalMart and take a picture of their current Mobil 1 pricing on both oil and filter, then walk across the parking lot to AutoZone and they’ll match the pricing with the one added bonus of getting the Rewards Points on my AutoZone card. When you make 5 purchases of $20 or more they give you $20 off your next purchase. I usually get 6 quarts of oil and filter for about $28 combined. It still isn’t cheap but it is a price I can live with.
 

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I thought we wanted SN plus oil in our trucks. The valvoline above isnt?
 

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I thought we wanted SN plus oil in our trucks. The valvoline above isnt?
It says on the label it meets or exceeds API SN with SN Plus
 

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2018 Ford F-150 4WD Lariat Sport, SuperCrew, 4WD, 3.5 EcoBoost, Special Edition Package
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What brand of synthetic oil is everyone using?

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Mobile 1 5W-30 Full Synthetic since ownership at 20K miles (now at 23K)
 

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Motorcraft full syn, MC filter. 🤷🏻‍♂️ Fanboy.
 

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Mobil 1 (standard, not EP/AP/etc.) 5W30, MC filter. Oil is cheap and plentiful at Costco, and it's good enough for a litany of very high-performance vehicles... so it should be good enough for my truck. MC filters are plentiful at ChinaMart.
 

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What I use, just did a change this evening as a matter of fact.

I change it between 3,500 and 4,000 miles,



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Amsoil 5W-30 Signature Series... It was even tested specifically in the Ford F-150 3.5L Ecoboost.

I know it's their propaganda... But so far it's held true for me.

Source: Signature Series 5W-30 Synthetic Motor Oil ASL - AMSOIL. Scroll down to this section:

"Preserves Horsepower
The extreme durability of Signature Series Motor Oil helps your engine run stronger, for longer. We installed Signature Series 5W-30 Synthetic Motor Oil in a Ford* F-150* with a new 3.5L Ecoboost* engine to test its ability to protect turbocharged direct-injection (TDGI) engines from torque and horsepower loss during extended drain intervals up to 25,000 miles (40,200 km). Power sweeps were done at the beginning and end of the test to evaluate horsepower and torque retention. As the graph shows, Signature Series helped maintain engine performance throughout the 100,000-mile (160,934 km) test."


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same here, i also use their filter, change it every 5k miles
 

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same here, i also use their filter, change it every 5k miles
I too, except I controversially have switched to a heavier weight.

My logic on oil is similar to the fellas that preach "any oil that meets spec".
But my emotions have me treating the truck to oil-porn because I can. Lol

Scientifically, I'm guessing that what matters most is FRESH oil and truck operating at normal temps.

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I too, except I controversially have switched to a heavier weight.

My logic on oil is similar to the fellas that preach "any oil that meets spec".
But my emotions have me treating the truck to oil-porn because I can. Lol

Scientifically, I'm guessing that what matters most is FRESH oil and truck operating at normal temps.

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I'm curious as to what made you decide to use a heavier oil?
 

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I'm curious as to what made you decide to use a heavier oil?
A few things.....

1. Although I'm not an expert, thus I don't recommend or encourage others, this isn't the first piece of machinery I've owned that I felt the recommended viscosity might not be the best viscosity in the climate I habitat in. In fact, I'm kinda surprised that Ford doesn't have a table of various viscosity recommendation based on climate and truck-use conditions.

I've had MANY cars, motorcycles, tractors and mowers, .... machines across the spectrum, that the recommendations were various viscosities based on factors. So, with that in mind, I consider that my truck typically operates in conditions that are on one side of the "norm" or the other. In my case, hotter climate and truck is often operated under load. (Towing) So I simply moved up to a viscosity that would be on that chart if there was a chart.

Again, I'm not vouching for anyone else to do so. But I ain't skeard of the decision. And I'm not the only Ecobooster running a little more viscosity than Ford recommends. Keep in mind that they also recommend those crazy oil change intervals. If they don't mind, I think I'll ignore their advice on some things? ;)

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I assumed it had to do with your climate and towing tendencies. And I agree everything you said makes perfect sense. They used to put a scale in the owners manual telling you to go down at certain temperatures and up at higher ones so it is surprising they don't do that now.

And don't worry, I wasn't criticizing your decision ;). Was genuinely curious of your reasons.
 
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