[dentalprodigy]

Hi everyone,
I was inputting my most recent gas receipt on my fuelly account and just noticed that my receipt says “supreme cr" instead of premium. Is there anything that I can do to abate this or should I simply listen for any unusual knocks . For context my car is a 2014 FRS with 3k miles on it. I have already done ~100 miles on this tank and haven't noticed any unusual behavior.

This is infuriating because the gas attendant asked me 3 times what grade of gas I wanted; twice from driver side window and then again from the passenger side. Soo pissed right now.

Hopefully there is no adverse effect to this. Should I contact the dealership? I'd rather not make that phone call and end up being revoking the warranty or something and being billed for something.

Any tips welcome. Sorry if I'm overreacting.

Update: just got gas again after almost finishing half a tank (trip meter says 115 miles at half tank). I asked the Delta gas station attendant what “supreme" means and he assured me that it's just another term for premium or 91 octane.

Although that is a relief but why the drop in fuel economy?. Perhaps it's b/c I didn't go home this weekend (80 miles highway) and so far have done 100% city driving(horrible Newark traffic).

I figured I'll update and inform that “supreme " is just another term for premium (at least at Exon gas stations).
........
BTW;

I don't understand the “full power " comment. Does that mean don't drive the new engine through the rev range? ( I just crossed 3k miles).

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