Tried higher octane tonight..., 87 to 91 Options

[shid]

Since I got the car, I've always put 87 octane fuel in it... and with the gas crises, it seems like it will NEVER be cheap enough to fill her up with 91 fuel. But today I was out of town (In San Dimas) and out of gas (err,, 1/8th below E) and I pass a gas station. Gas for 91 is at - 1 cent more expensive than gas for 87 at my house. Well I thought, screw it.

So I filled her up at 91

A lot of you have been saying that it doesn't make a difference, etc etc.

Well it does. I'm not talking about mythical horsepower gains- I doubt I got any.

But the car starts up smoother, idles better, and goes through it's RPMs like a hot knife through butter. It feels wonderful. Right now she's outside cooling off with a tankful of 91, and I like her that way.


mmmm


--Sean







and I put it on Daddy's credit card. BWAHAHAHHA

[KAMiX]

This should up the differences a bit. Close shid but a little off

RON = tested at 600rpm (Australia/UK & Japan I think)
MON = tested at 900rpm
PON = average of both (USA)

RON MON PON
90 83 86.6
92 85 88.5
95 87 91
96 88 92
98 90 94
100 91.5 95.8
105 95 100
110 99 104.5

By the way.. Even though RON is supposed to be "research tested" and MON "mechanically tested" both ratings are actually tested at low rpms in a real engine.

This post has been edited by KAMiX: Jun 24, 2004 - 12:55 AM