diesel or petrol

[drover]

Could never see why people dissed the V8 as a tug, I think a lot of folk rely on motoring reports...... or just some talk thru their bum.

8 speeder would make it even better.

That Youtube clip the info was lost amongst the usual Yank jibba jabba, engines names the same as a JGC but thats about it..... would like a RAM though V8 or oil burner I don't care so long as its an Export not a Yank pollution choked version....

[timsarg]

Originally Posted by jeepsgofaster

Big hemi fan here. It wasn't by accident I bought the V8.

As for fuel the wk's saw a huge jump in inovations for the hemi around fuel consumption. Wk has mds (shuts down 4cylinders for cruising). New eco mode (automatically engages an disengages without driver input. Plus the vvt

The vvt was a much bigger step forward than give it credit for imo. The motor makes so much more torque down low but at 3500 rpm when it retards the cam timing you can hear the exhaust note change and it squats the tail back down and takes off again.

I too choose the hemi for towing and general driving due to it being so smooth and well mannered around town but when I want to overtake that vvt cuts in right about where the diesel signs out and it just keeps on charging.

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i would have bought a hemi trailhawk in an instant . But the fukknuckle pencilpushers at fca didn't think we wanted or needed one after 2015. I love the diesel and i love that you can drive it like it's stolen but still can't compete with a hemo for enjoyment

[jeepsgofaster]

Originally Posted by timsarg

i would have bought a hemi trailhawk in an instant . But the fukknuckle pencilpushers at fca didn't think we wanted or needed one after 2015. I love the diesel and i love that you can drive it like it's stolen but still can't compete with a hemo for enjoyment

I'm right there with you I'd be driving a much later model overland or trail hawk had they brought them in.

I've kicked the tyres on the S-Limited a few times the lack of a quadra lift option keeps pulling me up

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[jeepsgofaster]

Originally Posted by drover

Could never see why people dissed the V8 as a tug, I think a lot of folk rely on motoring reports...... or just some talk thru their bum.



8 speeder would make it even better.



That Youtube clip the info was lost amongst the usual Yank jibba jabba, engines names the same as a JGC but thats about it..... would like a RAM though V8 or oil burner I don't care so long as its an Export not a Yank pollution choked version....

You're wright about all the jibba jabber in that vid, the short and long of it was this

The incline they are using is 7% grade for 8 miles. They test lots of different vehicles there. They have water in the trailer, 5700lds all up.

Going down they count the amount of times they have to apply the brakes to stay at 60mph the speed limit there

Hemi 5
Diesel 4 better engine braking

Accending they start at 35mph at the bottom then accelerate to 60mph and try to maintain it. A good run for a powerful truck is 8 minutes flat

Hemi 7:42min maintained 60mph
4.7mpg

ECO diesel 8:43min fell off but only into the 50's
5.4mpg

Ford ECO diesel did it in 9:45min


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[drover]

Yeah @jeepsgofaster , pulled that in after watching it a couple of times, god they jabber, I do knock down a cog or 2 downhill and wish for a Jake or exhaust brake at times, something the 8 speeder is more happy to do than the 5's................
The Toowoomba Bypass has a grade of about 6% or something and is like 15km so could be close but I doubt we could find a road that high up since Kosicusko is 7,000ft...............

On a convoy run with a small truck it would slow down as the day got hotter, rest of us would leave it behind, so when we got to SA we found a bit of pipe that was only about 3mm wider internal, jammed it into the air box and managed to get the air scoop back on, stayed with us after that no problem, ability to breath can make all the difference.

[SouthernComfort]

I wouldn't knock the V8's capability but just don't see what "where the diesel signs out" means either. If a direct comparison of GC's were done on exactly equal V8 & diesel models, same specs, same day, identical conditions, some proper conclusions might be drawn. All I know is it takes real discipline to hold my diesel back when I ask it to skate. The damned thing never runs out of steam, even its towing grunt is amazing. But each to their own, the main evaluation I'm interested in is what happens at the seat of my pants and the diesel does it plenty well for me.

[jeepsgofaster]

The signs out bit is more of an observation of the power spread more than a precived lack of power. CRD diesels make a lot of torque at lower rpm which makes them feel fast and accelerate very well but they hit a wall at about 3500rpm giving them an effective power spread of about 2500rpm where as the hemi is still very good down low but at 3500rpm where you expect the diesel to start flattening out is actually right where the vvt retards the cam timing and starts the hemi's top end charge to more or less 6000rpm giving it a power spread of 5000rpm and the nice side effect of that extra rpm in a motor like the hemi is more hp which is what you use overtaking and climbing steep grades at speed.

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