MPG too low? !?!

[MTF]

87? no can't be. Ahh, do have the 5.4 or 6.2?

Bolt ons hum, CAI?

Tune from 5 Star?

 

[svtchris1021]

6.2 .. Cai... Catback.. Headers.. hiflocats.. Tune yes 89 performance..Yup double check the manual and its says recomended 87... :/

 

[MTF]

Now your making go down to my truck a get the manual. LOL

WTF!

OCTANE RECOMMENDATIONS
Your vehicle is designed to use
“Regular” unleaded gasoline with a
pump (R+M)/2 octane rating of 87.
In high altitude areas, we do not
recommend the use of any “Regular”
fuel with an octane rating below 87.

Do not be concerned if your engine sometimes knocks lightly. However, if
it knocks heavily under most driving conditions while you are using fuel
with the recommended octane rating, see your authorized dealer to
prevent any engine damage.

 

[svtchris1021]

Lol xD ima send you a pic in a few

 

[MTF]

To be honest now, this is the first time I crack open the manual in 4 years.
But I did read 91 somewhere, I still cannot believe my eyes. LOL

Have you contacted Mike @ 5Star?

Also the use of winter blend fuel will drop your mpg.

 

[svtchris1021]

Here it is

 

[svtchris1021]

Yea he just told me to do the math manually and see what sup

 

[MTF]

Yeh Yeh I'm looking at it too.

I copied from Ford owners website.

 

[Evanscott29]

I'm guessing maybe you heard 91 when you went whippled? Anyways this is an interesting situation and I'm following this just to see what you find out. Also downloading gas cubby now


Sent from my iPhone using Tapatalk

 

[MTF]

OK I'm a freaking retard it's the Whipple that needs 91 or better.

I've had the Whipple on so long.

Man I'm getting old.

So forget everything I said, I apologize!!!!

---------- Post added at 06:45 PM ---------- Previous post was at 06:42 PM ----------

But it's a little scary when the book tells you a little pinging or knocking is OK!

I have to laugh at that one.