Jager

iTrader: (10)

87 all the way. I get angry with 89 .

Tofuball

Lowest stuff I can find, in any of my RX-7s

rx7kid4ever

did you ever use race gas???? if so you would no it smells like candy yes or no???it is the same thing for 86 race gas!!!!!!!!that is what i was saying

TitosToy

i use 93 in my 88 n/a. i get good power and it does feel smoother on all gears than putting 87 or 89. i still need to lean the a/f mixture though but i do get about 17-19 mpg city.

beamer242

i wish i could find anything below 87 cuz i would run that but since thats all i can find thats what i use.

eViLRotor

iTrader: (2)

Only time I ever drank octane was when I was siphoning gas...

Sideways7

iTrader: (7)

where can you find 85 octane?

homebrewer

In high elevation states. I live at 6800 feet above sea level. Typical rule of thing I have read about is you can reduce octane by 1 pt for every 1,000 foot gain in altitude. This rule of course only applies to normally aspirated unmodded engines.

Funkspectrum

iTrader: (5)

I use 87 in my TII....every once in a while I like to go 91 but that's rare...

MattB

^ same...87 TII running 87 octane...it told me in the manual that it was designed to use 87...that was enough proof for me that its ok to use 87.

Sideways7

iTrader: (7)

That only works if its stock, though.

BuujinBejiita

iTrader: (4)

87, the cars are so low compression higher octane doesnt really do much

homebrewer

The only way I can figure out this one is that your car's timing is advanced of the stock setting. But if that were the case, then you'd be detonating on 87 octane.

Consequently, I have to call baloney on your statement.

Another quick comment, its amazing how many people have accelerometers and dynamometers in stalled in their asses. The only valid way to test a power improving theory is to put it on a dyno and take a reading or take to to a 1/4 mile track.

There was another poster in another thread who stated he felt a 1 HP increase by doing something different with his car. I almost died of laughter.

Sideways7

iTrader: (7)

Wow, thats pretty f'ing funny.

piscorpio

I've been using 93, but recently put in 89 and it hasn't exploded, so I think I'll stick with 89.

cardzrule

Yo where is teh gas station? I looked all over for it and I can't find it, and it's not in teh phone book.

vex

I've never put anything less than 91 in my Turbo II. I would like a higher octane level, but it's the highest I can find around here. I've heard rumors of 94 somewhere, but I haven't found it yet.

jacobcartmill

iTrader: (6)

i'd be using 110 octane at the pump here since its 3.75 a gallon, but i dont wanna hurt my AEM wideband o2 sensor

FC3S.USD

iTrader: (2)

94 octane , but with new rebuild I will go with 91 for the first 1500 km of break in. Then ill decided if i want 94 or 91 .

Madrx7racer

91 or when i can afford it again 110 in my GTUsT
87 in fiancee's GTUs

vex

Lucky bastards with 110.

slpin

iTrader: (9)

why so much octane in a stock turbo?

mine didnt ping at a bar with 91 and thats prob more than what you boost?

lukerx7

87

S2-13BT

98 in my '86 TII. That's the highest pump fuel available in Australia. We don't have 87 octane, the lowest is 91 I think.

88t2romad

^ i hate you!!! the highest we have here is 90 at the pump

...unless they are reated differently....