As I was going threw the owners manual I came up on how much octane to use in my 1999 5.4 truck (page#196).You must use a rating of 87,It also says premium gasoline is not recommended particularly in the United States
like starting.rough idle or hesitation etc.
Do I have to use prem. gas with my super chip
or will I experence those problems above.
JOE S.

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1999XLT,Supercab,Gold,5.4Styleside,Flowmaster#70 Series Catback,Rockford Fosgate 400a4 Amp.MTX-5000 Dual Eight's Sub.
Uniden Radar Detector,
Black Tinted Window's, Super Chip!
*************************
[HAVE FUN]

 

Joe,

How about sending this post to all those folks who insist they get oodles of power and MPG more running premium without a chip. Guess that new anti-knock sensor thing is AGAIN hogwash. Like you said Ford denies any advantage to premium. www.angelfire.com/pa3/spaceace/index.html



[This message has been edited by spaceace (edited 11-22-1999).]

 

Dear Joe,

Yes, that is indeed printed in a lot of Ford owner's manuals, and it's been there for years. The factory programming requires 87 octane for best overall performance, because the fuel and spark curves are tailored for the burn rate and anti-knock properties of 87 octane fuel.

That all goes out the window, so to speak, with the Superchip as it tunes the engine to run specifically on premium gasoline, so using premium with your Superchip will not cause you any problems like that described in your owner's manual.

Basically, it's the different burn rate (slower) with higher octane fuels that can cause driveability problems using premium with the factory programming.

Don't worry, you're fine using premium with the Superchip, that's what it is *made* for.

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Mike Troyer
Performance Products, Inc.
National Distributor of Superchips
(540) 862-9515
Email: mtroyer@compuserve.com

[This message has been edited by Superchips_Distributor (edited 11-23-1999).]

 

Thank's Mike I feel a little better now knowing my truck will reach 100,000 miles, which would be in four years.When it's paid off. Joe S.
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1999XLT,Supercab,Gold,5.4Styleside,Flowmaster#70 Series Catback,Rockford Fosgate 400a4 Amp.MTX-5000 Dual Eight's Sub.
Uniden Radar Detector,
Black Tinted Window's, Super Chip!
*************************
[HAVE FUN]

 

Dear Spaceace,

I love it!

Actually, it's so hard to know just what and who to believe these days, so it's no wonder people get confused. Again, that's why F150online is so valuable!

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Mike Troyer
Performance Products, Inc.
National Distributor of Superchips
(540) 862-9515
Email: mtroyer@compuserve.com

 

Mike,

What is it that you like?

My constant stirring of the pot? My ability to revive even the deadest of threads?

Tell me, I'm dyin here !

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1999 F250 SD CC, LWB, 5.4L, Auto, 3.73, 4x4, Power TT mirrors w/ marker lights, White, Full Tint, PendaPro SR, FlowmasterDelta 40 series, K&N filtercharger, Superchip(Airbox removed for a second try, maybe in the winter it will be advantagous?)

www.angelfire.com/pa3/spaceace/index.html