I'm a new member of the forum however I have been reading the posts for some time now. This particular thread is of great interest to me because I was debating between gas V6, V8, and diesel motors.
A little background on me, I tend to drive my cars until they aren't worth fixing anymore. I am faithful about performing routine and preventative maintenance so my cars last. My current driver is a 2001 Volvo S60 with 306,000+ miles. My wife drives a 2007 Town and country with 127,000 miles. Like I said, I keep my cars a long time!
I was drawn to the diesel because I wanted the increased fuel economy and the get up and go from my test drive was really great. After reading the posts about the problems with the emissions systems (e.g. DEF, catalytic converter, etc), I chose to pass on the diesel. I know that the posts on boards like this are skewed toward the reporting of problems, but I prize reliability and dependability. I hope the problems are resolved soon as I still think the motor may entice me in the future.
I drove the V6 and while it didn't have the launch off the line that the diesel had, it was still a comfortable vehicle. Very nice!
I modeled my fuel costs to estimate the relative pro's and con's of the diesel and the V6. The advantage of the diesel in fuel economy was offset by the price difference between diesel and gas in Texas. Essentially it was a wash for me. At present fuel costs the difference is less than $100/yr.
Then someone suggested that I look at the V8. On paper the V8 is close enough to the fuel economy of the V6, that to me, the costs were close enough for me to live with. My worry was that the EPA estimates would be way off and the V8 mileage would be abysmal! financially I can handle it, but I know I would kick myself everytime I filled up if I was only getting 10 or 12 mpg's! And I looked at Fuelly.com to research mileage and a number of V8 owners are reporting mileage in the 10 to 12 mpg range with no notes about towing or other exceptional conditions.
So what to do? I took the advice of several of y'all (yes I am in Texas) and went on some test drives. The diesel was nice but at this time I'm not willing to take the chance. My 20 mile or so test drive of the V6 was pleasant and returned 21.1 mpg with a mix of highway and city driving. I then took the V8 out on the same route, and with ECO turned on I was able to get 18.3 mpg. And, I put my foot into it a few times to find out what all the fuss about the hemi was. Well, I still have a smile on my face!
The V6 was a very enjoyable and comfortable ride. The V8 was flat out fun! I would be happy with either motor but decided to have a little more fun along with the comfort and choose the V8. And my observed mileage difference was only 2.8 mpg's well within my comfort zone. Yes it was using the EVIC and yes it was only a 20 mile test route. The data squared with the EPA mpg differential and was consistent with a number of posts on Fuelly.com.
Bottom-line, this past Friday I ordered my 2015 Limited 4x4 with a V8 and the options I want. I now get to wait 6 weeks for delivery but it will have just what I want. I could have gone with the Overland but I felt that with more bells and whistles, there are more opportunities for problems. The probability is low but I want to maximize the probability that I will be able to drive my new Jeep for 200,000+ miles! And yes, I will purchase a Maxcare warranty.
I want to thank all of you for contributing to the discussion on this topic and others. This was an invaluable source of information for me and contributed to my purchasing decision.