Wrangler unlimited Petrol vs diesel

[PapaSmurf]

It's not so much that the car is underpowered - it has enough grunt for a 4WD. What your mechanic may have meant is that the engine itself is underpowered, considering it's size (and thirst).
BTW: the diesel has even less power. You may not feel it though, as it more than makes up for it with torque.
The Superchips Flashpaq engine tuner adds about 10% more power and torque to the pertol unit. There are also equivalent diesel boosters, but I have no data on the performance gains.

[Gravel]

Originally Posted by The Patriot

Hey,

Thinking about getting an unlimited petrol, but my mechanic thinks they are underpowered with the 6 cylinder engine. What does everyone think?

If it is underpowered, what can be done to beef it up a bit.

Cheers,

James

If you want a petrol V6 buy it and then get yourself the Superchip Flashpaq; running 33's on mine and tuned it with the programmer and there is heaps of power and better fuel economy too boot...

At @ 225 hp now up from 205 hp certainly not under powered.

If you don’t buy the diesel.

[Davesjeep]

they arent underpowered, i have petrol no complaints on power

[TassieMav]

The CRD is IMHO the better engine of the two for Highway stuff and offroad.

But I drove the Petrol when I test drove my JK way back and I had no complaints...................... if you think it's underpowered, I would personally prefer engines to be engineered on the conservative side if it's going to get me some more life out of it!

[Crackles]

I think you should consider getting yourself a new mechanic as he clearly has no idea what he's talking about
Both the petrol & diesel JK's have excellent power to weight.

[andyperth]

My V6 hammers up sand hills it leaves most other 4x4 for dead.

Bolt a Bullet Supercharger on it