i would like to know what the best quality (brand) of gas to use in my rsx? what octane is the best to run the type-s with. thanks.

 

91 and up is recommanded

 

100 OCTANE!!!!!!! i can get it for 4.95 a gallon down here

 

dayam 92 octane here for aobut 1.58 a gallon ... grr ~!!!

 

sunoco 94 if you can find it

 

actually a local 76 station sells 102 here. good for hytechs high compression pistons

 

VP Racing C-16 116 Octane $7.00/ gallon 5 gallon minimum.

Sunoco 100 Octane $3.72/ gallon.

 

Sunoco 94

 

hrm... can i say.. idiot?
as long as your car does not knock and ping.. youre fine. higher octane fuel (that is un-needed) is a foolish waste of money. because the richer mixture won't do **** for you car. just use the whatever octane gas is recommended for your RSX (i think it's 91).

 

You have no place calling anybody an idiot.

First of all, the K20A2 uses a knock sensor, meaning that the engine may run just fine on lower octane fuel but it will be making less power due to the ECU retarding timing.

Second, the air/fuel ratio is not affected in the least by the octane rating of gasoline. The engine will not run richer with higher octane. Octane is the measurement of the ratio of 5-ring to 6-ring hydrocarbons in the fuel. 6-ring hydrocarbons are more stable than 5-ring hydrocarbons, which means that a fuel with a higher ratio of 6-ring hydrocarbons is less prone to detonation.

 

I like texaco 91 myself. It works fine here during the 110 degree summers. I'm assuming your running a fairly stock engine in a milder climate, so I don't think you'll need octane higher than 91. You'll be wasting money buying higher octane gas.