Re: 2005 GC- Mileage, Plugs

In article <VJidnZOu0Y4W09nVnZ2dnUVZWhednZ2d@[EMAIL PROTECTED]
>,
 "maxpower" <gjbeasley@[EMAIL PROTECTED]
> wrote:

> "Steve Richards" <fixmypc01@[EMAIL PROTECTED]
> wrote in message
> news:ObK0k.244$oA1.132@[EMAIL PROTECTED]
> > Just checking in, the missus has the 3.7L and the specs say plugs
every
> 30k.
> > She's really up in arms about the fuel prices. That's a topic for
another
> > day. Sure am glad I don't have a diesel!
> >
> > She's getting 17-19 (80% hiway). I pulled the plugs (50K) and they are
the
> > original NGKs. We're the second owners and I am really surprised that
they
> > haven't been changed. Air filter is clean and we use 87octane.
> >
> > Anyway, I am planning on replacing the plugs tomorrow with Bosch
Platinum
> > IIs. Pros/cons and your feedback would be appreciated.
> >
> > TIA!
> >
> > Steve
> > -- 
> >
> > 2008 Sonata SE- His
> > 2005 Grand Cherokee-Hers
> > 1997 Holiday Rambler Endeavor LE 36'- Ours
> >
> > AZ home for sale near Laughlin, Las Vegas, BHC:
> >
> > http://www.realtor.com/realestate/golden+valley-az-86413-1089865380
> >
> >
> 
> There is no 3.7 in the GC. It's  a 3.8.  

Uh, no...  The Grand Cherokee comes with the 3.7, 4.7 or 5.7 liter 
engines.  No 3.8 liter available.

> The spark plugs on the 3.8 are
> replaced at 100K. 

The spark plugs on the 3.7 are replaced at 30K miles.

> The plugs on the 2.4 (4cyl) are replaced at 30k.

No 4 cylinder offered in the Grand Cherokee -ever-
 
> Glenn Beasley
> Chrysler Tech