What Octane Gas Do You Use?

[Ikudni]

Does it make a difference on a car without engine mods?

[brandon]

Everyone will tell you something different...

Unless you're running with serious mods, I don't believe you have to use anything other than what the manual says.

I personally use 89.

[JiP]

I probably would use higher octane gas but gas is way too expensive in NY, so I go with regular cause its the cheapest =D

[peanotation]

i use high octane, you get better mileage and you can feel the performance gain.

[Strahan]

I use high octane, but just because it's not really a huge saving to go cheap. Last time I filled it I used premium and I calculated that if I had used regular, I'd have saved only $2.60 or so. Whoop-de-do.

[VegasMatt]

I run 105 Octane on track days...that shit is exspensive...damn iraqis...

91 on the street.

[95mitsu03]

during the cold winter months, I run with 89. warmer months I use regular

[xSILENTx]

If you have no engine mods anything higher than 87 is just wasting money

[peanotation]

<div class='quotetop'>QUOTE(xSILENTx)</div><div class='quotemain'>If you have no engine mods anything higher than 87 is just wasting money</div>

nope.

i've proven it on my car and 3 other cars myself. premium burns slower, therefore you get more mileage out of a tank of gas. i got about 40 more miles out of a tank of gas on my G, and average about 45-50 more miles on the other cars. you can also feel premium's power gain. when i switched from low octane to premium, i felt an instant difference in acceleration and all around pick up. along with the other cars i tested out.

[bronxbombr]

93 octane and up only.

[Marky]

I only put the best in my baby and peanotation is right on the money I have noticed things like that to but never really tested it