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Sorry if this is somewhere already but I was unable to find. . Question is what gas do you use reg mid or premium or other and do you notice a difference....

I always use 93. This motor has pretty high compression. Definitely don't use less than 91. Using too low of an octane will cause detonation in the cylinders (this is a bad thing).

I mean, doesn't the manual say use premium only?

Quote:

Originally Posted by mrnibbs (Post 941221)

Sorry if this is somewhere already but I was unable to find. . Question is what gas do you use reg mid or premium or other and do you notice a difference....

Before someone sends the obligatory :sign0012: ,premium and nothing but. Minimum 91, but, 93 is recommended.

Quote:

Originally Posted by mrnibbs (Post 941221)

Sorry if this is somewhere already but I was unable to find. . Question is what gas do you use reg mid or premium or other and do you notice a difference....

93 all day.

Doesn't it say it inside of the gas cap as well?

Quote:

Originally Posted by Enraged21 (Post 941262)

Doesn't it say it inside of the gas cap as well?

believe so

Quote:

Originally Posted by Enraged21 (Post 941262)

Doesn't it say it inside of the gas cap as well?

Yes it does, just checked!

http://i1225.photobucket.com/albums/...psc37565a7.jpg

On a side note, I now know it's called a "fuel filler gun".

To elaborate on the why:
The difference between octanes is not necessarily more power, it's stability. Higher octanes are more resistant to preignition (knock, ping, detonation, etc), Which is where the mixture may ignite prematurely and momentarily force the crankshaft backward. This is bad, and could eventually lead to the engine beating itself to death. Higher octane ratings allow more aggressive tuning (spark timing, fuel ratio, higher compression, forced induction, etc) because the mixture will ignite when the spark is fired, not a moment before. The ECU has a window for some of these parameters, and it will reduce their values if it detects preignition. If it detects none, it will continue to improve it's parameters until it reaches it's programmed limit. More aggressive tuning is what makes more power, whereas a higher octane rating is simply what enables it.

As everyone has stated, for the 86, "premium" fuel (91+) is necessary for the engine to perform well. Lower octanes could preignite, and cause the ECU to retard timing and run a little richer.

Quote:

Originally Posted by wheelhaus (Post 941473)

To elaborate on the why:
The difference between octanes is not necessarily more power, it's stability. Higher octanes are more resistant to preignition (knock, ping, detonation, etc), Which is where the mixture may ignite prematurely and momentarily force the crankshaft backward. This is bad, and could eventually lead to the engine beating itself to death. Higher octane ratings allow more aggressive tuning (spark timing, fuel ratio, higher compression, forced induction, etc) because the fuel will ignite when the spark is fired, not a moment before. The ECU has a window for some of these parameters, and it will reduce their values if it detects preignition. If it detects none, it will continue to improve it's parameters until it reaches it's programmed limit. More aggressive tuning is what makes more power, whereas a higher octane rating is simply what enables it.

As everyone has stated, for the 86, "premium" fuel (91+) is necessary for the engine to perform well. Lower octanes could preignite, and cause the ECU to retard timing and run a little richer.

:clap:

Use super essence only. Because ordinary essence isn't enough.

also we put in a liquid so its pretty silly to call it gas.
call it petrol or fuel instead.

http://en.wikipedia.org/wiki/Fuel#Solid_fuel

or go all out on the JDM train:

ガソリン

Quote:

Originally Posted by ReVoiD (Post 941541)

also we put in a liquid so its pretty silly to call it gas.
call it petrol or fuel instead.

http://en.wikipedia.org/wiki/Fuel#Solid_fuel

or go all out on the JDM train:

ガソリン

lol, "petrol" and "fuel" can be just as ambiguous as "gas" if you want them to be. Your own source lists "gasoline" in the liquid category as a secondary terminology. Not sure if troll or..........

I did notice while driving thru south dakota last year I couldn't find any gas above 87!!!!!