Join Date: Jun 2006
Own a Commander?: Yes
Model year: 2006
Trim Package: Limited
Power-Train: 5.7L V-8 Hemi
If 4WD - system: QD-II
As for plugs I changed them around 15-20k and notice the hemi is a bit more sluggish. Should I swap them out with a longer lasting plug? I have read conflicting reports on this?
The HEMI runs best with the OEM copper Champion plugs.
Fuel filter has also not been changed so thats on my list.
The fuel filter is a "lifetime" part and can not be changed. It is located inside the fuel tank. Go figure.
As for oil I have ran conventional penzoil and it seems to be doing just fine. Should I keep with this oil or change it out now?
My goal is to keep this jeep forever.
Since your goal is "to keep this jeep forever" you should be using a high quality full synthetic oil such as Mobil 1 or Royal Purple. I use Mobil 1 in mine, as do a lot of the enthusiast members here, but Royal Purple is also excellent. And since you have a HEMI you must use 5W-20 weight oil
or the MDS (Multi Displacement System) will not function properly.
2006 Steel Blue 5.7L HEMI Limited 4x4 Build Date: June 9, 2006 Hour 14
Interior: Dark Slate/Light Graystone with Saddle Brown Leather Seats
Quadra-Drive II, NAV, DVD, Trailer Tow Group IV, Off-Road Group II, Remote Start, UConnect, Rear Backup Camera, Chrome Wheels,
Magnaflow cat-back exhaust, Daytime Running Lights enabled, 2" Rough Country Lift with 265/70R17 Goodyear Wrangler AT/S
Last edited by jeep5253; 05-12-2013 at 05:08 PM.