What octane do you use

[FordTechOne]

What is "top tier." Shell with V-power? Chevron with Techron?

Here you go sir:

www.toptiergas.com/retailers/

Sponsored

 

[SR56]

Daytona FL area is mostly 91/92, but I've found some spots with 93. Using that pretty much exclusively now.

I have a Steeda tune for 92 octane, but will probably bump it up now that I have options I didn't know about when I got it.

 

[dogiebitt]

I always use 93.

 

[RawisTheGameHhH]

shell v-power 93

 

[yiweno]

I used 91 for 3,000km and then switched to 87 and traveled 20,000km since then.

 

[mhagerty]

I'm tuned so 93 for me.

 

[homegrown]

93 only in my dd

 

[Doc4975]

93 octane, as I have a S/C on it

 

[redline727]

93 with Lund tune spring/summer 93 Lund tune with Lucas octane booster in the fall/winter due to data logs from multiple gas stations around these months proven shittier fuel quality around here. Usually see it till about this time then quality comes back up...And I stick to top tier gas stations primarily Shell 93

 

[Joe 5.0]

93 at all times. If I can't find that high of an octane for whatever reason, then 91.

 

[Rob@Evolution]

93 or E85 depending on my mood. I don't even run 87 in my lawnmower so definitely not in my DD.

 

[Hashbrownn]

I've put 87 in my DD Mustang GT since day 1.
Being able to run 87 was one of the reason why I bought the Mustang. Coming from several "premium only" cars, this was a welcomed change.
I don't see a reason to put 91/93 unless you have a specific tune for it or is running boost.
NC offers 87/89/93... if you are near Charlotte Speedway or other track/drag strip, you can find 100 Octane easily.

 

[Zelek]

That's the one thing I found pretty crazy about the Coyote is allowing regular unleaded. I would think Premium would be a requirement on an engine like this. I'll probably still put Premium 93 in it regardless, but I definitely will have the car tuned for flex fuel so 93 will benefit more than a factory tune. It's still nice to be able to swap to regular unleaded when needed.

 

[ZuluEcho]

93 on my Ecoboost, although for a long trip coming up (10 hours of freeway) I may just use regular, since there is no point in the extra power there... I like that the car works well with either one.

 

[whalesalad]

Most premium cars will run on 87 too... the engine will adapt. In high altitudes it's almost necessary to run a lower octane.

I don't know why someone would buy a 400+ horsepower Mustang GT and not run 93... but I guess that's none of my business.

Sponsored