My son needs help with a school project

[lisa]

All I know is when I put anything over 87 octane in my dreamer, she runs like crap. The Citgo stations around here start at 89 octane and my cruiser will not run on it.

[Bluept02]

I, for one, actually did a test on this back in 1990 on a Dodge Daytona (4cyl) at the drag strip. First two runs were with the gas in the tank, 87 octane, both runs were in the 19.60's. Next unhook fuel line from the tank to a can with 94 octane, did two more runs, both were in the 19.30 range. The car was slow enough that tire spin was not an issue and all four runs were made in the same hour of the day so as not to change air quality. The car was left in drive and floored with the brake on till the green light flashed and off it went. Also picked up 2-3 MPH. I am a believer of higher octane fuel running BETTER than lower octane fuel.

[bigjim]

Chrysler products have been known for years to run a little higher then the 87 octane that there were designed for. Why ? it's any ones guess. But if you really want to play around with mileage try ten gallons of 87 and two of 89. and see what you get , 87.33 of course. most gallon is shipped at 87 octane or a little above that, usually not over 87.2. Most states will allow a lose of 3 to 6 tenths of a gallon below that. So if your fuel is shipped a long listance from the terminal it could be lower then 87 by the time you get it. Luckily for me the brand that I use is only 15 miles from the terminal,with the refinery only a few miles from there. and the station that I use gets delivery's almost dailyand I know how close they watch there Octane Give aways.I tried 93 in the cruiser one time and my mileage dropped.

[JOEM]

I think someone's gonna get an "A" on their science project. Maybe Lisa can come in and demonstrate her chrome luggage rack...gotta have a little bling bling, even in school these days.

[bigjim]

Ken ,I have a question for you. If you use say 93 octane ,what are you paying for that fuel compaired to the use of 87 octane over the same period and miles. I 'll be for the dollar value, 87 octane is far more the better choice.Especially at todays prices.Our R/d deptment found that if your cruiser runs poorly on 87 oct. then there must be something wrong with your cruiser, Dirty plugs, bad wires, dirty air cleaner ,low tire pressure,.one extra gallon of 89 or 93 will also help.

[Bluept02]

My PT does NOT run poorly on 87 octane fuel but it runs BETTER on 93 octane fuel. It has more power and for the extra $1.00 to $1.50 per tank, I like the extra little bite of power it gives. I use about one tank of fuel per week, times 52 weeks in a year and I would say I pay about $75 to $100 more than you would burning 87. I feel, let me repeat that, I feel that it gives just a few more ponies under the hood and with the lack of horsepower the PT has any little bit will help.
I know people will argue that it doesn't add horsepower but "I feel" it does. I also think it burns cleaner. Thats just me, and for the extra $100 per year I feel that its something I can do.

[bigjim]

Ken,I know that if you burn hy test gas and have your emissions tested on a car that burns 87 oct. it will flunk the state test here in Delaware. So what do you burn in your corvette?

[Bluept02]

Not so... I also drive a 92 Dodge colt that I also burn 93 octane and I just had it to the inspection station within the last 30 days and it passed with flying colors. This car, the colt, has been in my family since it was new and has had nothing be 93 octane run in it. It has passed Delaware emissions 3 times in the last 6 years. As for the Corvette, nothing but 93 or 94 octane...

[bigjim]

Ken ,You keep on burning 94 Oct. That makes my stock go up. It went up 63 cents since yesterday.

[Bluept02]

Originally Posted by bigjim

Ken ,You keep on burning 94 Oct. That makes my stock go up. It went up 63 cents since yesterday.

Glad I could help..... and yes I will keep burning 93 or 94 octane.