pjr

iTrader: (8)

My FD is pretty stock, except for some minor mods like intake, exhaust, and removed solenoids. I've been using Shell premium in the car, but I'm not sure if that's overkill. At $3.60 per gallon, I wouldn't mind dropping to mid grade if it's reasonable.

Any feedback is appreciated!

SidewaysS30z

Premium

Youre literally only talking a couple of dollars to fill from empty.

HadaVette

iTrader: (3)

Premium is not overkill. Regular and detonation may register a real kill...
My vote is Chevron or Union 76, for no particular reason, but stick to a good brand name.

Sgtblue

iTrader: (16)

91, w/ WI and near stock boost levels on twins.

pjr

iTrader: (8)

i Have Shell nearby....we don't have Chevron or Union 76 in this market. We have Sunoco and BP here and there as well.

Shell MidGrade is 91 octane, and premium is 93.

fendamonky

iTrader: (6)

Always use the premium fuel (93 octane or 91 west of the Mississippi) from whatever station you trust, that is BUSY all the time.

Personally I prefer Sonoco or Shell (V-power) but fresh fuel is better than old.

DaleClark

iTrader: (55)

Yep, general rule is premium fuel (93/91) and from a name brand, high volume station.

Gas stations that are out of the way can have gas that has sat for a while, has water in it, you name it.

Different major gas manufacturers use different additive packages for injector cleaning and whatnot, really hard to tell if one is necessarily better than the other. Running some injector cleaner through once a year may be worth doing.

Also, always fill up the tank and do at least a minor effort to track MPG. Bare minimum reset the trip meter after a fillup, REALLY bad fuel economy can be a sign of problems with the car. A decent running FD should be able to get 18-19 city and 21-23 highway. Very low fuel economy can be a sign of a bad tune, leaky injectors, bad O2 sensor, bad water temp sensor, or even an external fuel leak. All things that are worth addressing.

Dale

adam c

iTrader: (2)

Always at least 91 octane. Bad gas mileage can also be caused by a heavy foot. That seems to be my problem

OP, dont complain about $3.60 per gallon. Premium fuel is over $4.00/ gallon here.

7_rocket

iTrader: (6)

94 here

HiWire

Petro-Canada Ultra 94.

Never cheap out on gas. Detonation will cost your engine.

Coldmonster

I always fill up at chevron or texaco 91 octane (same company different name) but thoes are the only 3 stations between my work and home.

Marf

Shell V-Power Nitro+ 99 RON