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Jeep Liberty Diesel
I was all excited about them until I found out that the only transmission available for them is an automatic. In my opinion, that totally defeats the purpose of an SUV and a diesel. If and when Jeeps comes out with a manual 5 or 6 speed transmission for the Liberty CRD; I may take another look.
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Jeep Liberty Diesel
My suspicion is that this diesel engine has been detuned for the 5 speed automatic much like Dodge detuned the Cummins behind the 47RE. An automatic pretty much also rules out any possibility of an exhaust brake although on a vehicle that small it would be arguable whether it is practical. It also pretty much rules out any modifications to the engine for a little extra torque and hp. An automatic transmission is not capable of holding a gear at full throttle or any degree of load without either hunting for gears or over revving the engine. The manual trans. allows the driver to select the gear he or she wants and maximizes the torque curve and output of the engine to its optimum use in my opinion. Not very many road tractors out there with automatics. They just don't and never will hold up behind a diesel with any degree of heavy use. I agree that they might be nice to drive in traffic for light duty use but the owner will be seriously eating brake shoes and limited in the vehicles use. I'm gonna wait for the manual trans.
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Jeep Liberty Diesel
Thanks for the Jeep forum links! Those were pretty interesting to read and get others impressions.
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Jeep Liberty Diesel
The key phrase you mentioned was "PROPERLY matched engine/tranny/software". I have yet to see one manufactured by an OEM one of the big 3 auto manufacturers. They can be modified at great expense but there goes the warranty.
"Lots of buses, dump-trucks, and cement mixers are." Not from what I have seen in our county school motorpool garage or during my 21 years with Uncle Sammy in Army motorpools. Although the Army goes with automatic because the soldiers tear up manuals MUCH faster do to negligence.
I would agree with you that for 95% of the buying public that auto trans. is probably the best bet but not for me.
It looks like we agree but see it from somewhat different angles. ;o)
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