Which gas do you guys use?

[Questortapes74]

I have a Phillips 66 and a Murphy station that both sell 93 EtOH free premium about 1 mile away from where I work. Unfortunately the price is on the way up. First photo about 3 weeks ago. Last photo from fill up today...

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[shinoda]

93, every day. Mostly Sunoco, but I'll do Shell or BP in a pinch.

 

[FreePenguin]

93 from Sam’s, Costco or meijer. Meijer is down road if I need a fill, they are top tier. Atleast the stickers on pump claims it

 

[Sivi70980]

Same pump, same Chevron station, every Monday. 92 octane.

 

[AngelsofVerdun]

only 93 in my GT premium. Mostly Shell gas, but sometimes I use costco or Sams club also.

I've observed great experiences with the 93 Oct at my Sam's; I often fill up with Sam's or Kroger 93 Oct gas. With those two chains, I have yet to observe bizarre behavior from my engine.

 

[Buck550]

I've observed great experiences with the 93 Oct at my Sam's; I often fill up with Sam's or Kroger 93 Oct gas. With those two chains, I have yet to observe bizarre behavior from my engine.

Me too, I have never known anyone personally that has had any problems with them either

 

[QCGoose]

Shell 93 w/ ethanol, though right now it's filled with Kwik Star 91 non-ethanol for winter storage.

 

[W.O.T. Stang]

I've run 93 octane from Valero since day 1. I'm not sure how much additional timing it gives but it's nice that it can advance timing. Also something about running 87 on a 12:1 compression engine makes me think that you would lose quite a bit of power with all the timing it would pull.

Although with the rising gas prices - 93 is getting pricey approaching $4.

 

[m3incorp]

I've only used Costco and Shell 93 octane. I did use Sams 93 once, because it was close to where I happen to be at, at the time. Sam's gas is not Top Tier branded, but that doesn't mean it isn't good gas from what I've heard from people.

 

[Mustang Maverick]

I have to run at least 91 with my Ford Performance tune. I run 93 since that's what's here. I only get Shell gas.

So how do you like the Ford Performance Tune?
Real Improvement?

 

[Mustang Maverick]

I have to run at least 91 with my Ford Performance tune. I run 93 since that's what's here. I only get Shell gas.

Also, are you using the stock air box? Drop in filter? FP CAI? Other CAI?

And nice hood - Cervini?

 

[FreePenguin]

my obd2 device always says im at -1.00 gas from both Sams and Costco, I use Sams 99% of time since Costco is 30 a way, I use Costco when I actually shop there and have a purpose to go down there (chicken bake sub) but Sams has always been fine. what annoys me, is they are always 10cents more than Costco and its not top tier, but I wouldn't save anything going to Costco and back.

but Sams club is on their stuff, they routinely clean the tanks etc, they just had the giant tank cleaner thing there last month. I don't use fuel while its there, but they maintain their tanks, brand new tanks and all that jazz.

the fuel guy was filling up, he said its the same fuel that goes to the BP down the road, but he doesn't know about formulation just that its filled at the same exact time, and both the BP and Sams both come out the same nozzle,

which leads me to believe it is actually top tier? dunno. but it runs fine, been using it years. I wouldn't push anyone away from Sams, its still 60-80cents cheaper than other stations except Costco in area for 93.

I think ethanol is actually beneficial for Ecoboost from what I read, cools the cylinders down

 

[Ginger1]

93 Top Tier. Minimizes the chances of Ecoboom. Any brand, although I've heard conflicting stories about Shell in particular - some say it's great, others (including some tuners) say its particular additives are not good for GDI engines such as the EcoBoost.

 

[FreePenguin]

93 Top Tier. Minimizes the chances of Ecoboom. Any brand, although I've heard conflicting stories about Shell in particular - some say it's great, others (including some tuners) say its particular additives are not good for GDI engines such as the EcoBoost.

I think octane matters 99% more than top tier. And catch can. I think ecoboom is highly dependent on the cars oil, shit oil vs high tier oil with anti lspi additives.

 

[v8hgt]

Shell VPower 99 RON, so equivalent USA rating is approx 95 AKI if you could find it anywhere. After a bit of internet research im lead to believe you guys have 93 AKI as your premium unleaded.

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