TJ25012

Is there a recommended Octane level or fuel grade that I should be
using in an 02 F250 SD V10? Or does it not matter?

The OTHER Kevin in San Diego

On 14 Sep 2005 05:55:09 -0700, "TJ25012" <travisj1@alliancecom.net>
wrote:

>Is there a recommended Octane level or fuel grade that I should be
>using in an 02 F250 SD V10? Or does it not matter?

Use what's printed on the inside of the filler door. 87 octane is
what I ran in mine before I chipped it and did intake/exhaust mods at
15k..

Higher octane won't do jack for performance on a stock engine. It
WILL suck money out of your wallet at a faster rate tho.

SnoMan

"TJ25012" wrote:
>Is there a recommended Octane level or fuel grade that I should be
>using in an 02 F250 SD V10? Or does it not matter?

This one it a hot potatoe. Octane requirement of a engine is not
constant, it varies with engine and air temp and altitude. If you just
plug around and do not tow, you "might" get by on 87 okay except in
really hot weather. Just because you do not hear the knock, it does
not mean that it is not and that the computer is not retatrding spark
which effects power and MPG. Run few tank of plus through it and see
how it runs power. responce and MPG wise compared to 87 and if you tow
heavy, it would be 89 min in my book for best power. Myself I have
used 89 or better in my trucks for over 10 years now and I can tell a
difference especailly towing on a hot day. I can maintain 70 on a
long highway grade with a 7500 lb trailer in drive with a a std cab
2000 K3500 with 4.10’s, stock tires and a 5.7 without any real effort
with it 95 plus and A/C on too running 93 octane. THere are those that
will swear by 87 even though they are losing power on MPG at times
because a modern engine will not runs it on a warm day without some
timing trickery by ECM and everytime you retard spark to control
knock, you loose MPG and power plain and simple.

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Matt Macchiarolo

On the other hand, at todays prices, a few cents more for 91 doesn't hurt
the wallet that much more. You'd think they'd throw in some vaseline,
though.

Had to gas up 2 vehicles yesterday. Grand total gas purchase $126. Ouch.

"The OTHER Kevin in San Diego" <skiddz "AT" adelphia "DOT" net> wrote in
message news:locgi1lf5sj9vu5ptmef8m692n340euhdq@4ax.com...
> On 14 Sep 2005 05:55:09 -0700, "TJ25012" <travisj1@alliancecom.net>
> wrote:
>
>>Is there a recommended Octane level or fuel grade that I should be
>>using in an 02 F250 SD V10? Or does it not matter?
>
> Use what's printed on the inside of the filler door. 87 octane is
> what I ran in mine before I chipped it and did intake/exhaust mods at
> 15k..
>
> Higher octane won't do jack for performance on a stock engine. It
> WILL suck money out of your wallet at a faster rate tho.

Doctor John

This is a good point about higher octane being "relatively cheaper" now -
instead of the 10 cent increase for high test reflecting say an 8 percent
increase in gas cost, its now more like a 3 percent increase.
Interestingly, I heard a news report that said consumers are buying less of
higher octane gas, and more low octane, with the price increases. And, if
you want to cry for me, I literally coasted into a gas station the other day
with my F350 super duty (gas gauge read 1/4 tank but it was off - any way to
adjust this?) and filled up with 35 plus gallons of gas for about $105.00!
Even the gas attendant was breathless.

John

"Matt Macchiarolo" <matt@nospamplease.com> wrote in message
news:fdqdnZ1M7t_eIrXeRVn-sA@comcast.com...
> On the other hand, at todays prices, a few cents more for 91 doesn't hurt
> the wallet that much more. You'd think they'd throw in some vaseline,
> though.
>
> Had to gas up 2 vehicles yesterday. Grand total gas purchase $126. Ouch.
>
> "The OTHER Kevin in San Diego" <skiddz "AT" adelphia "DOT" net> wrote in
> message news:locgi1lf5sj9vu5ptmef8m692n340euhdq@4ax.com...
> > On 14 Sep 2005 05:55:09 -0700, "TJ25012" <travisj1@alliancecom.net>
> > wrote:
> >
> >>Is there a recommended Octane level or fuel grade that I should be
> >>using in an 02 F250 SD V10? Or does it not matter?
> >
> > Use what's printed on the inside of the filler door. 87 octane is
> > what I ran in mine before I chipped it and did intake/exhaust mods at
> > 15k..
> >
> > Higher octane won't do jack for performance on a stock engine. It
> > WILL suck money out of your wallet at a faster rate tho.
>
>

Matt Mead

On Thu, 15 Sep 2005 08:07:13 -0600, "Doctor John"
<nospamplease@stabarnd.net> wrote:


>you want to cry for me, I literally coasted into a gas station the other day
>with my F350 super duty (gas gauge read 1/4 tank but it was off - any way to
>adjust this?) and filled up with 35 plus gallons of gas for about $105.00!
>Even the gas attendant was breathless.
>
>John


Ouch! I'm not driving my truck much right now, but since I was out
and about in it the other day, I stopped at 7-11 and put $15 in it.
The needle on the gauge barely moved. While I felt pretty silly only
putting 5 gallons in it, I had to laugh when I pulled up to the pump
and saw the last person there had put $5 worth in their tank.

Oh, and I've never used anything other than 87 octane in my truck and
see no reason to switch now.

Matt
99 V-10 Super Duty, Super Cab 4x4

Doctor John

Hey Matt - you have the same model and truck I have. Mine is a dually with
a dump bed on it. What is your mileage? I'm getting 5 MPG, but I am doing
short hauls with heavy loads. Also, I've only had this truck for a few
months and although I went through the brake system, the brakes seem to
require an extraordinary amount of pressure when braking hard. What is
yours like?

Thanks

John

"Matt Mead" <mdmead@DELETETHIScharter.net> wrote in message
news:3s1ji15edbu40rnkhbnos5jbj10jdt4pot@4ax.com...
> On Thu, 15 Sep 2005 08:07:13 -0600, "Doctor John"
> <nospamplease@stabarnd.net> wrote:
>
>
> >you want to cry for me, I literally coasted into a gas station the other
day
> >with my F350 super duty (gas gauge read 1/4 tank but it was off - any way
to
> >adjust this?) and filled up with 35 plus gallons of gas for about
$105.00!
> >Even the gas attendant was breathless.
> >
> >John
>
>
> Ouch! I'm not driving my truck much right now, but since I was out
> and about in it the other day, I stopped at 7-11 and put $15 in it.
> The needle on the gauge barely moved. While I felt pretty silly only
> putting 5 gallons in it, I had to laugh when I pulled up to the pump
> and saw the last person there had put $5 worth in their tank.
>
> Oh, and I've never used anything other than 87 octane in my truck and
> see no reason to switch now.
>
> Matt
> 99 V-10 Super Duty, Super Cab 4x4

The OTHER Kevin in San Diego

On Wed, 14 Sep 2005 20:31:03 -0400, "Matt Macchiarolo"
<matt@nospamplease.com> wrote:

>On the other hand, at todays prices, a few cents more for 91 doesn't hurt
>the wallet that much more. You'd think they'd throw in some vaseline,
>though.
>
>Had to gas up 2 vehicles yesterday. Grand total gas purchase $126. Ouch.

Filled up the 350 yesterday with 91 octane. $108.. Ouch! Even the
bike now costs double digits to fill...

Gas was $1.07 when I bought my truck in '01. It's more than tripled
in 4 years..

Bro-in-law got back from Iraq a few weeks ago. He said gas sells for
about a nickel a gallon oer there.. Must be nice...

Razorblade

>
> Gas was $1.07 when I bought my truck in '01. It's more than tripled
> in 4 years..
>
> Bro-in-law got back from Iraq a few weeks ago. He said gas sells for
> about a nickel a gallon oer there.. Must be nice...

Yeah, but I wonder what a gallon of Jack Daniel's Black would cost 'em?

Razor

Mellowed

Been using 87 Octane since day one and pulling a 14,000 lb 5th wheel.
No problems at all. A Banks Power Pac is installed.

You can experiment with higher Octane's and draw your own conclusions.
But, you are OK with 87.

'99 F350 CC 4x4 V10.


"TJ25012" <travisj1@alliancecom.net> wrote in message
news:1126702509.941501.287110@g49g2000cwa.googlegroups.com...
: Is there a recommended Octane level or fuel grade that I should be
: using in an 02 F250 SD V10? Or does it not matter?
: