what type of oil do you use in your 11-14 GT? - Page 4 - Ford Mustang Forum
View Poll Results: what oil type do you use in your coyote engine for mustang gt? also what octane?
straight conventional 7 5.19%
synthetic blend 39 28.89%
full synthetic 89 65.93%
octane 87 14 10.37%
octane 89 5 3.70%
octane 91 68 50.37%
Multiple Choice Poll. Voters: 135. You may not vote on this poll

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Currently, I switched from Motorcraft synthetic 5W30 to Pennzoil Platinum Ultra 5W30.
I am using the Motorcraft oil filters.


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I just got my 5.0 a few months ago and I've only put 2000 or so miles on it so far. I changed the oil immediately since I didn't know the history, but I actually used cheapo Quaker State conventional 5w30. I'm planning on draining it at 3000, which it can definitely handle, just as a flush and then it's Mobil1 5w30. Stock filter is the best imo (fl500s), and I daily mine and California gas prices are ridiculous so I'm just using 87 now, if I ever have a road trip and highway sprints I might swap it out for 91 (no 93 here in the people's republic of california )


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Running Mobil 1 Fully Synthetic 5w20 my 2012 GT used 1 qt every 1,500 miles. Since I have changed to 5w30 at 40,000 miles it hasn't used a drop.

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Mobil1 Faux Synthetic and 93 Octane in both of my 'Stangs

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Quote:
Originally Posted by BullittSS View Post
Just changed the oil this weekend -- Mobil1 5W30 -- the 5W20 poured out of the oil pan like water...
5 W 20 is a pretty lightweight oil, especially in full synthetic blend and is especially good during cold winter months,it flows and gets to critical area's faster than heavier weights or dino oils. 5 W 30 is a good choice during summer months because a lil heavier...heavier oils rob a motor of it's hp (in small amounts) and increase fuel consumption.
I usually use Mobil 1 5 W 20 full synthetic, as for gas, I like Shell 91 oct...NO Ethanol in it at all!

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Quote:
Originally Posted by 5.0 Candy REDCS View Post
5 W 20 is a pretty lightweight oil, especially in full synthetic blend and is especially good during cold winter months,it flows and gets to critical area's faster than heavier weights or dino oils. 5 W 30 is a good choice during summer months because a lil heavier...heavier oils rob a motor of it's hp (in small amounts) and increase fuel consumption.
I usually use Mobil 1 5 W 20 full synthetic, as for gas, I like Shell 91 oct...NO Ethanol in it at all!

5w-20 and 5w-30 have the same cold flow properties and will perform equally well in average winter climates. In very cold climates you may want to consider a 0w oil.


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Quote:
Originally Posted by carlg View Post
In the Philadelphia region, we have Sunoco's all over. So, I've been using 93.

Didn't Sunoco's highest grade though used to be 94? Or is my memory fading?
Yes Sunoco did have a 94 octane, I ran it in high school. It hasn't been available (at least around here) for about 15 years, it's sadly missed . . .

To the OP, Mobil1 5W-20 full syn, Mobil1 filter equivalent to the Motorcraft 820S (which will work in place of the 500S and variants), and Sunoco 93

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Amsoil 0w-20 change every 4K.


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Quote:
Originally Posted by BullittSS View Post
Just changed the oil this weekend -- Mobil1 5W30 -- the 5W20 poured out of the oil pan like water...
Oh but that 5W20 flows to the vital parts oh so well!


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Quote:
Originally Posted by slorydn1 View Post
Oh and only premium fuel has made it into my tanks (93 octane here)
The 89, 91 and 93 gases are not of a better "quality" that 87. They just have more ignition inhibiting stuff.


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amsoil 10w30atm shell 93 oct

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Quote:
Originally Posted by OkieHick View Post
The 89, 91 and 93 gases are not of a better "quality" that 87. They just have more ignition inhibiting stuff.
This is true. However, our cars are designed to retard timing and deliver less horsepower when using regular gas, 10 less horsepower to be exact.

So, my babies get what they want.


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so 60 cents a gallon for 10 hp is nuts
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Quote:
Originally Posted by mustangted1963 View Post
so 60 cents a gallon for 10 hp is nuts


So is buying a supercharger.

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