High Octane Good?
Technical Article Contributor
Joined: Jan 2007
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From: Vernon, NY
Originally Posted by azmidget91
umm....am i the only one who thinks these two sentences are saying the exacpt opposite
Member
Joined: Oct 2006
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From: Germany
i got not much of a choice over here. all i can get is 95 or 98 octane. most shell also have their 100 octane which they say keeps your engine clean, (we´ll see when the plugs come out at 100000) plus up to 5% better performance. truck runs fine, never had any issues with high octane fuel, like the ford manuel says they might occur.
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Joined: Oct 2004
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From: Marion VA
Burning high test in an engine can damage to the oxygen sensors and it is not covered by warranty (my brother found this out the hard way). The dealer took care of it (since he does work for them at his body shop) but warned him it was a one time only thing and they were doing him a favor.
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From: Maricopa, AZ
Originally Posted by ManualF150
Sorry, fixed... I was going to say something more about the lower volatility of high test... but I scratched and forgot to do some more backspacings. I'm at 3:05 am on like 5 hours of sleep talking about scientific things here... gimme a break.
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From: Northern Illinois
Originally Posted by weazel
Hey people. I have a question, us Californians don't have the luxury of 91+ octane. But my main question is, isn't the higher the octane the more power you will see? Because i look up a few places that sell 100 octane unleaded. I was thinking of mixing 5 gals of 91 and 5 gals of 100 to boost the octane level a little bit. I spoke to my tuner and he said my truck will advance the timing just a little to utilize the higher octane. but not enough for pure 100 octane.
any thoughts?
any thoughts?
Oye....
I'll make this simple :
IF your motor is not built/tuned for a certain octane rating, running anything higher is ABSOLUTELY POINTLESS. You will experience ZERO GAINS, PERIOD. Nada, zilch. The higher octane fuels are designed solely to prevent the onset of preignition, otherwise known as ping. The higher octane fuels are less volatile and hence, less likely to combust until the sparkplug fires.
Anyone who tells you different knows not what they speak of.
Last edited by rms8; Nov 30, 2007 at 12:46 PM.
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Joined: Sep 2007
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From: Ontario
You said you spoke to your tuner...so i'd ask him. He knows how your engine is set up and should know how it will react (or provide the forum with more details...) If you are only changing the fuel and if your engine is not set up properly (compression & timing) I would think you might even see a decrease in performance no?
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Joined: Jul 2003
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From: The Deep Back Woods of The Great White North
I think you'd be wasting your money honestly. Your truck is rated for 87 octane. Why would you put anything else in a stock truck?
It would be really expensive to keep buying high octane gas cans every week and a major pain in the *** to mix them. Unless you have an Octane gauge you'll never really know what your octane is. Beside you'll never notice the power difference (I could be wrong just my .02 cents).
In Canada I believe the highest octane you can buy is 94 Octane at Sunoco. http://www.sunoco.ca/default.aspx?ID=2390
It would be really expensive to keep buying high octane gas cans every week and a major pain in the *** to mix them. Unless you have an Octane gauge you'll never really know what your octane is. Beside you'll never notice the power difference (I could be wrong just my .02 cents).
In Canada I believe the highest octane you can buy is 94 Octane at Sunoco. http://www.sunoco.ca/default.aspx?ID=2390
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Joined: Aug 2005
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From: Lone Star State
okay... so if I have my edge and I up the timing is it okay to run 93 or is it a waste. I want to say my truck is running rich but I am not sure... I noticed a lot of "black stuff" on the pipes.