Agree! The cost of engine repair is much higher. Using low octane fuel on an older Imperial with the higher compression ratio can cause pinging which is possble to put a hole in your piston. My '64 "427" Galaxie 500 XL with 13 to 1 compression ratio has to run on "VP" or "Cam 2" which are racing fuels. The cost is $5.29 to $5.85 a gallon. I need at least 106 octane. The highest pump gas octane in my area is 94 from Sunoco, and this is not high enough for my Galaxie. The Sunoco 93 or 94 runs great in my '66 Imperial. Rich Woolf '66 Crown '73 LeBaron -----Original Message----- From: RandalPark@xxxxxxx [mailto:RandalPark@xxxxxxx] Sent: Wednesday, March 10, 2004 8:47 PM To: mailing-list@xxxxxxxxxxxxxxxx Subject: Re: IML: octane booster and price of gas/Why? I agree with you Rich. I think that the point of this was that since gas is so expensive, the person wanted to run cheaper, low octane gas instead of premium, and use the octane booster to make up for it. Apparently, the cost of low octane gas added to the cost of the octane booster is less than just buying premium fuel. To me, if somebody has to quibble over 20 cents per gallon of gas, they are probably in the wrong hobby. Paul In a message dated 3/10/2004 12:11:37 PM Eastern Standard Time, richard.woolf@xxxxxxxxxxxx writes: > Is all this octane booster really necessary? > > I run high test unleaded in my '66 Imperial with the original motor. However I do use the lead additive. The compression is 101/2 to 1. You have to adjust the timing a little, but my car runs real good with no pinging. Lots of low end power. > Rich Woolf > '66 Crown > '73 LeBaron > > > -----Original Message----- > From: Dodd David J [mailto:DoddDJ@xxxxxxxxxxxxxxxxxx] > Sent: Wednesday, March 10, 2004 11:56 AM > To: 'mailing-list@xxxxxxxxxxxxxxxx' > Subject: IML: octane booster and price of gas > > > > > I picked up a 5 gal container of 118 and add a little bit to every other fill up. But then again I have a 440 with high > compression heads and large cam. > cr0wn