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GilONel's avatar
GilONel
Explorer
Jun 18, 2013

A question on fuel for a E-450 ford chassis

My neighbour and I both have Jayco Greyhawks on Ford E450 chassis.
The same engine, the 6.8L ford engine.
He insists on using high octane fuel, probably octane 94.
I was considering using octane 87, which is what the book says.
Any opinions on this would be appreciated.
My unit is a 2008 while his is a 2012.
I just purchased mine a few days ago hence this question came up.

Many Thanks
Class C

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  • Coalminer_UG's avatar
    Coalminer_UG
    Explorer
    Jun 18, 2013
    ScottG wrote:
    Dakzuki wrote:
    KD4UPL wrote:
    Your neighbor is wasting his money on fuel.


    x2


    X3. He's getting no advantage from it.

    X4
  • ScottG's avatar
    ScottG
    Nomad
    Jun 18, 2013
    Dakzuki wrote:
    KD4UPL wrote:
    Your neighbor is wasting his money on fuel.


    x2


    X3. He's getting no advantage from it.
  • Dakzuki's avatar
    Dakzuki
    Explorer II
    Jun 18, 2013
    KD4UPL wrote:
    Your neighbor is wasting his money on fuel.


    x2
  • Home_Skillet's avatar
    Home_Skillet
    Explorer II
    Jun 18, 2013
    I was a Ford tech for 25 years.
    These engines are designed for low octane fuel.
    The high octane fuel is "slower" burning. This will actually create carbon deposits in the combustion chamber.
    These carbon deposits will flake off and jam a valve open causing engine damage.
    I have seen it happen several times.
  • GrumpyandGrandm's avatar
    GrumpyandGrandm
    Explorer
    Jun 18, 2013
    n7bsn wrote:
    Follow the manual... I have since my first V10 in 1999. I tried higher octane and could not detect any difference in performance or milage

    .


    I totally agree, when we had our 2001 E-450 I did the same thing and the only thing that improved was the gas stations profit.
  • Livies_Dad's avatar
    Livies_Dad
    Explorer
    Jun 18, 2013
    Mine is a 2005 with 39k miles on it and have always used 87 octane
    and never any issues.
  • n7bsn's avatar
    n7bsn
    Explorer
    Jun 18, 2013
    Follow the manual... I have since my first V10 in 1999. I tried higher octane and could not detect any difference in performance or milage

    In fact follow on maintenance also, Ford designed the thing and know it better then 99.999% of all backyard gearheads.

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