Re: 2005 GC- Mileage, Plugs

"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.  The spark plugs on the 3.8 are
replaced at 100K. The plugs on the 2.4 (4cyl) are replaced at 30k.

Glenn Beasley
Chrysler Tech