Re: Remote Keyless EntryTransmitter?/2002Grand Cherroke
 

In article <Xns99FBD1A9B8932xs11emailinatorcom@85.214.90.236> ,
XS11E <xs11e@mailinator.com> wrote:
#reboot <reboot@nothere.com> wrote:
#
#> he got around 14 MPG w/ almost exclusively freeway driving and it
#> required premium gas.
#
#That's a killer for me, it's a very big increase in the cost of running
#the critter. I noticed the 4.7 V8 has a high performance version that
#requires premium and I'd sure be avoiding that model. I'd like the
#extra performance but I'm too cheap to pay for it. ;-)

The 4.7HO is listed as being able to run on the cheap stuff as well as
on premium. The engine changes the way it burns the fuel to compensate
for the higher or lower octane.

/herb

Re: Remote Keyless EntryTransmitter?/2002Grand Cherroke
 

herb@urusei.net (Herb Leong) wrote:

> In article <Xns99FBD1A9B8932xs11emailinatorcom@85.214.90.236> ,
> XS11E <xs11e@mailinator.com> wrote:
> #reboot <reboot@nothere.com> wrote:
> #
> #> he got around 14 MPG w/ almost exclusively freeway driving and
> it #> required premium gas.
> #
> #That's a killer for me, it's a very big increase in the cost of
> running #the critter. I noticed the 4.7 V8 has a high performance
> version that #requires premium and I'd sure be avoiding that
> model. I'd like the #extra performance but I'm too cheap to pay
> for it. ;-)
>
> The 4.7HO is listed as being able to run on the cheap stuff as
> well as on premium.

I was referring to the 1999 - 2004 Overland models, they are
supposedly premium only. Haven't checked on the 2005 and later.

> The engine changes the way it burns the fuel to compensate for the
> higher or lower octane.

BTW, any modern engine will compensate for lower octane, the knock
sensor just retards the spark resulting in less power and less economy.
It's not a good idea if premium is available.


--
XS11E, Killing all posts from Google Groups
The Usenet Improvement Project:
http://improve-usenet.org

Re: Remote Keyless EntryTransmitter?/2002Grand Cherroke
 

herb@urusei.net (Herb Leong) wrote:

> In article <Xns99FBD1A9B8932xs11emailinatorcom@85.214.90.236> ,
> XS11E <xs11e@mailinator.com> wrote:
> #reboot <reboot@nothere.com> wrote:
> #
> #> he got around 14 MPG w/ almost exclusively freeway driving and
> it #> required premium gas.
> #
> #That's a killer for me, it's a very big increase in the cost of
> running #the critter. I noticed the 4.7 V8 has a high performance
> version that #requires premium and I'd sure be avoiding that
> model. I'd like the #extra performance but I'm too cheap to pay
> for it. ;-)
>
> The 4.7HO is listed as being able to run on the cheap stuff as
> well as on premium.

I was referring to the 1999 - 2004 Overland models, they are
supposedly premium only. Haven't checked on the 2005 and later.

> The engine changes the way it burns the fuel to compensate for the
> higher or lower octane.

BTW, any modern engine will compensate for lower octane, the knock
sensor just retards the spark resulting in less power and less economy.
It's not a good idea if premium is available.


--
XS11E, Killing all posts from Google Groups
The Usenet Improvement Project:
http://improve-usenet.org

Re: Remote Keyless EntryTransmitter?/2002Grand Cherroke
 

In article <Xns99FD8BAC343F2xs11emailinatorcom@85.214.90.236> ,
XS11E <xs11e@mailinator.com> wrote:
#herb@urusei.net (Herb Leong) wrote:
#> The 4.7HO is listed as being able to run on the cheap stuff as
#> well as on premium.
#
#I was referring to the 1999 - 2004 Overland models, they are
#supposedly premium only. Haven't checked on the 2005 and later.
So was I. The 4.7 was only used on 1999-2004 WJs. The HO was
not widely used until the 2002 model year. There are a handful
of 2001s with the HO but they were research cars.

#> The engine changes the way it burns the fuel to compensate for the
#> higher or lower octane.
#
#BTW, any modern engine will compensate for lower octane, the knock
#sensor just retards the spark resulting in less power and less economy.
#It's not a good idea if premium is available.

http://www.wjjeeps.com/ho_engine.htm
http://www.wjjeeps.com/engine.htm

/herb

Re: Remote Keyless EntryTransmitter?/2002Grand Cherroke
 

In article <Xns99FD8BAC343F2xs11emailinatorcom@85.214.90.236> ,
XS11E <xs11e@mailinator.com> wrote:
#herb@urusei.net (Herb Leong) wrote:
#> The 4.7HO is listed as being able to run on the cheap stuff as
#> well as on premium.
#
#I was referring to the 1999 - 2004 Overland models, they are
#supposedly premium only. Haven't checked on the 2005 and later.
So was I. The 4.7 was only used on 1999-2004 WJs. The HO was
not widely used until the 2002 model year. There are a handful
of 2001s with the HO but they were research cars.

#> The engine changes the way it burns the fuel to compensate for the
#> higher or lower octane.
#
#BTW, any modern engine will compensate for lower octane, the knock
#sensor just retards the spark resulting in less power and less economy.
#It's not a good idea if premium is available.

http://www.wjjeeps.com/ho_engine.htm
http://www.wjjeeps.com/engine.htm

/herb