Re: 1998 Grand 8 cyl 5.9
 

bllsht <nospam@invaliddot.net> wrote in
news:63lpg2tj8rvrhugo8s9sbh6mjsptffp0ja@4ax.com:

> In message <Xns984058AE91C8Fxs11eyahoocom@70.168.83.30>, "XS11E"
> wrote:
>
>>"Doug" <nono@nono.com> wrote in
>>news:AfmdnVf8_57eqJbYnZ2dnUVZ_rqdnZ2d@comcast.co m:
>>
>>> FWIW I was told that the computer can be programmed for lower
>>> octane gas.
>>
>>Correct, but as I said, it's a waste of time and money. The knock
>>sensor will do exactly the same thing, retard the spark with
>>exactly the same results, less performance and less gas mileage.
>
> Nice advice except for one small problem. The 5.9 doesn't have a
> knock sensor. It will happily ping it's self to death if you run
> regular without reprogramming it.

No knock sensor? Is it fuel injected?

Re: 1998 Grand 8 cyl 5.9
 

bllsht <nospam@invaliddot.net> wrote in
news:63lpg2tj8rvrhugo8s9sbh6mjsptffp0ja@4ax.com:

> In message <Xns984058AE91C8Fxs11eyahoocom@70.168.83.30>, "XS11E"
> wrote:
>
>>"Doug" <nono@nono.com> wrote in
>>news:AfmdnVf8_57eqJbYnZ2dnUVZ_rqdnZ2d@comcast.co m:
>>
>>> FWIW I was told that the computer can be programmed for lower
>>> octane gas.
>>
>>Correct, but as I said, it's a waste of time and money. The knock
>>sensor will do exactly the same thing, retard the spark with
>>exactly the same results, less performance and less gas mileage.
>
> Nice advice except for one small problem. The 5.9 doesn't have a
> knock sensor. It will happily ping it's self to death if you run
> regular without reprogramming it.

No knock sensor? Is it fuel injected?

Re: 1998 Grand 8 cyl 5.9
 

yes it is you have a rt engine that is also in the dakota truck

Ed wrote:

> A few days ago I bought a '98 Grand Cherokee with 8Cyl 5.9 and now I
> see that it might be necessary to use premium gas. Bad news but is it
> true?

Re: 1998 Grand 8 cyl 5.9
 

yes it is you have a rt engine that is also in the dakota truck

Ed wrote:

> A few days ago I bought a '98 Grand Cherokee with 8Cyl 5.9 and now I
> see that it might be necessary to use premium gas. Bad news but is it
> true?

Re: 1998 Grand 8 cyl 5.9
 

yes it is you have a rt engine that is also in the dakota truck

Ed wrote:

> A few days ago I bought a '98 Grand Cherokee with 8Cyl 5.9 and now I
> see that it might be necessary to use premium gas. Bad news but is it
> true?

Re: 1998 Grand 8 cyl 5.9
 

u reprogam that controler and you will lose the timing curve that goes with the
higherflow heads not to mention the detonation that takes place

Ed wrote:

> bllsht wrote:
> > In message <1158268539.893721.123660@b28g2000cwb.googlegroups .com>, "Ed" wrote:
> >
> > >A few days ago I bought a '98 Grand Cherokee with 8Cyl 5.9 and now I
> > >see that it might be necessary to use premium gas. Bad news but is it
> > >true?
> >
> > The 5.9 came programmed to run premium, but can be reprogrammed to run on
> > regular.
>
> Thanks to all who responded. I will use regular and see what happens
> and the mention about reprogramming will take care of any problem.
> Ed. Kelly

Re: 1998 Grand 8 cyl 5.9
 

u reprogam that controler and you will lose the timing curve that goes with the
higherflow heads not to mention the detonation that takes place

Ed wrote:

> bllsht wrote:
> > In message <1158268539.893721.123660@b28g2000cwb.googlegroups .com>, "Ed" wrote:
> >
> > >A few days ago I bought a '98 Grand Cherokee with 8Cyl 5.9 and now I
> > >see that it might be necessary to use premium gas. Bad news but is it
> > >true?
> >
> > The 5.9 came programmed to run premium, but can be reprogrammed to run on
> > regular.
>
> Thanks to all who responded. I will use regular and see what happens
> and the mention about reprogramming will take care of any problem.
> Ed. Kelly

Re: 1998 Grand 8 cyl 5.9
 

u reprogam that controler and you will lose the timing curve that goes with the
higherflow heads not to mention the detonation that takes place

Ed wrote:

> bllsht wrote:
> > In message <1158268539.893721.123660@b28g2000cwb.googlegroups .com>, "Ed" wrote:
> >
> > >A few days ago I bought a '98 Grand Cherokee with 8Cyl 5.9 and now I
> > >see that it might be necessary to use premium gas. Bad news but is it
> > >true?
> >
> > The 5.9 came programmed to run premium, but can be reprogrammed to run on
> > regular.
>
> Thanks to all who responded. I will use regular and see what happens
> and the mention about reprogramming will take care of any problem.
> Ed. Kelly

Re: 1998 Grand 8 cyl 5.9
 

On Sun, 17 Sep 2006 07:42:41 -0700, XS11E <xs11eNO@SPAMyahoo.com>
wrote:

>bllsht <nospam@invaliddot.net> wrote in
>news:63lpg2tj8rvrhugo8s9sbh6mjsptffp0ja@4ax.com :
>
>> In message <Xns984058AE91C8Fxs11eyahoocom@70.168.83.30>, "XS11E"
>> wrote:
>>
>>>"Doug" <nono@nono.com> wrote in
>>>news:AfmdnVf8_57eqJbYnZ2dnUVZ_rqdnZ2d@comcast.c om:
>>>
>>>> FWIW I was told that the computer can be programmed for lower
>>>> octane gas.
>>>
>>>Correct, but as I said, it's a waste of time and money. The knock
>>>sensor will do exactly the same thing, retard the spark with
>>>exactly the same results, less performance and less gas mileage.
>>
>> Nice advice except for one small problem. The 5.9 doesn't have a
>> knock sensor. It will happily ping it's self to death if you run
>> regular without reprogramming it.
>
>No knock sensor? Is it fuel injected?

No knock sensor.

Yes, it is injected.

Re: 1998 Grand 8 cyl 5.9
 

On Sun, 17 Sep 2006 07:42:41 -0700, XS11E <xs11eNO@SPAMyahoo.com>
wrote:

>bllsht <nospam@invaliddot.net> wrote in
>news:63lpg2tj8rvrhugo8s9sbh6mjsptffp0ja@4ax.com :
>
>> In message <Xns984058AE91C8Fxs11eyahoocom@70.168.83.30>, "XS11E"
>> wrote:
>>
>>>"Doug" <nono@nono.com> wrote in
>>>news:AfmdnVf8_57eqJbYnZ2dnUVZ_rqdnZ2d@comcast.c om:
>>>
>>>> FWIW I was told that the computer can be programmed for lower
>>>> octane gas.
>>>
>>>Correct, but as I said, it's a waste of time and money. The knock
>>>sensor will do exactly the same thing, retard the spark with
>>>exactly the same results, less performance and less gas mileage.
>>
>> Nice advice except for one small problem. The 5.9 doesn't have a
>> knock sensor. It will happily ping it's self to death if you run
>> regular without reprogramming it.
>
>No knock sensor? Is it fuel injected?

No knock sensor.

Yes, it is injected.