Octane and Combustion Temperature

[TallPaul]

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As far as higher octane gas being somehow higher quality or leaving fewer deposits, I have never seen/experienced anything to back that up.

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Seems the oil companies always hype the additives in premium, but that may be just that--all hype.

Well, guess the Aerostar will be left alone. It's running fine for now. As for the F150 and apparent hot running (per plug) I need to check the timing and maybe retard slightly.

Thanks to all posters.

 

[Dad2leia]

You could always run Turbo Blue or equivalent, just to be on the high side of the octane rating T.P.!!

 

[TallPaul]

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You could always run Turbo Blue or equivalent, just to be on the high side of the octane rating T.P.!!

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Ooooh Yes! Another additive? Where do I get it? Hopefully it's at Big Lots for a buck!

 

[Dad2leia]

Turbo Blue is the trade name of racing gasoline. In my area it comes either 115 leaded octane rating or 105 unleaded octane rating. I haven't purchased this stuff in years (call my nuts, but I ran it in my lawnmowers!) and at last price check, it was $6.95 per gallon.

I ran a tank in my first car (1974 Buick Century), just for kicks. Man did that thing run good with that tank, but back then (early 90's), $60 a tank was really hard to swallow. Now, unfortunately, that's a tank top off on the Dodge diesel!!!

 

[mechtech2]

Higher octane fuel is not a slower burning fuel.
It is more resistant to pre ignition, or self ignition.
Many premium fuels have extra additives for cleaning and prevention of deposits.

 

[TallPaul]

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Higher octane fuel is not a slower burning fuel.
It is more resistant to pre ignition, or self ignition.
Many premium fuels have extra additives for cleaning and prevention of deposits.

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Then in that last regard, it may be worth running premium, but perhaps better to just put my own additive for prevention of deposits.

 

[Dad2leia]

The only thing that I've read though about running the premium is that even though it has a nicer detergent additive package than base octane fuels, today's computers can adjust engines to run on the cheap stuff, and really won't benefit from running higher octane.

That was part of my experiment with the Blue in my Buick. I ran it to see if I could get better mileage and a smoother running engine. I did get a smoother running engine, but the mileage percent increase vs. cost of the fuel didn't make the benefits worth the cost increase.

On that note T.P., I'd have to agree with you just buying your own additive and adding that to the minimum octane rated gasoline that you can run.