Grand Cherokee questions

I am thinking about going to look at a 2005 Grand Cherokee. It is a 4 wheel drive automatic with a hemi. I was wondering if this will require premium gas. What kind of mileage could I realistically expect to get? Are there any problems I should look for? Thanks for any advice.

 

Welcome @Silentrunning ...you won't be silent running with that Hemi motor. When it was new it was one of the fastest SUVs. To get that 300+HP you probably should run premium but its a non issue if you want that power in an SUV nor is the MPG so figure on 13-14. JGC have never been known for reliability so buyer beware. Plenty of cons on the internet.

 

I have a 2004 Jeep Grand Cherokee Laredo 4x4 V8

I'm wondering if all of these items are related electrically, because my 2004 Jeep Grand Cherokee V8
1) won't start,Gas gage says empty but tank is full.
2) AC clutch isn't turning so AC doesn't work.
3) Windows won't go down even after checking all wires in door jams they're good, and replacing master control on driver door.
I've checked all fuses they're fine, I even replaced the relays. Windows stop working so I went through the process of all the checks. Wanting to use the air conditioner because windows wouldn't go down, that's when I noticed the AC didn't work.
Two weeks later while still trying to fix the other 2 problems now it won't start, gas gauge indicating empty even though the tank is full.
Anyone know if they are related electrically? Or what to do?

 

i get about 10 on a good day with a 06 4.7