I was filling up last night and was about half way when I noticed it 90 octane instead of 93 octane, which is the tune I have in. What can I do to keep my 93 octane tune, or is their something I can do? Wish it was a weekday so I could call mike anyways maybe somebody else can help.

 

If it is filled with 90, you'll need to switch out of the 93 tune. Can cause serious problems runnning a lower octane with a high octane tune.

 

Did you stop when you noticed it was 90-octane and finish the fill up with 93-octane at a different station?

 

I stopped and went straight to auto zone and bought the nos in a bottle which is supposed to raise the octane level 3 octane points on 16 gallons of gas. I will finish filling up with 93 today. Do you think this is ok?

 

Might be ok but Id probly drop back down to the 89 performance tune if you have one to be on safe side until you get that 90 out of your system. just my .02

 

Yeah, you should be OK with that once you finish filling up with a quality 93-octane. I say quality 93 because many different brands of gas could possible start out with the same base-stock; it’s the additive package that makes the difference

 

HI 02KR,

Funny that you should mention the ONE and ONLY octane booster that we approve of in a pinch - the NOS brand.

Now keep in mind that yo have to read their label CAREFULLY - it says it can raise 8-16 gallons of fuel UP TO 3 points - not that it WILL raise a certain amount by a set amount of octane number, and that is very important to remember.

I prefer to drop back to a lower octane tune, and if yo have more octane than it calls for, and if you have *our* custom tuning, then you will get some additional power automatically, especially in the 1999 & newer trucks, and even moreso in the 2004 & newer 5.4 3V's, as they have a *fantastic* dual knock sensor system.

Basically, run your current tank of fuel down as low as possible - and I mean BELOW the 1.4 tank mark - an then fill it back up with proper 93 octane fuel, so you cna safely use your 93 octane tuning.

I hope that general info helps a bit,. & good luck on this!

 

I can do that, I finished filling up with good quality 93 octane after the booster. I have been driving around like an old grandma till I run this tank dry but since you said drop down just to be on the safe side, I will do that ASAP.
Thank you Everybody

 

Hi - with regard to knock sensor systems - do any of you folks with 'industry insider' information know if/when Ford is adopting Delphi's ion current knock sensor system?

http://www.delphi.com/pdf/e/ign_ion_cur.pdf

http://www.fs.isy.liu.se/~larer/Projects/main.html

This is such a great concept - using the spark plug as a sensor - it's already in the right place

I would think this method would be superior to the current acoustic one, and would allow tuning to address knock for each cylinder separately. Do I have this right?

Currently in use on Harley V-Rods... what a motor - but heck it is designed by Porsche .

Cheers
Vic

 

A number of aspects of what's talked about there are already in place & have been for some years now.

Just for one small example, we *already* have the ability to control, tune & effect spark knock control over each individual cylinder in these vehicles - we've had that ability for years in these F-series vehicles just for one example - we can control the spark over each cylinder and it's knock control in these F-150's going back a number of years.

But yes, future technologies are invariably exciting, and it's the success of the actual implementation that tells the tale, as always - I agree!