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SUVs Jeep Liberty and Jeep Liberty Diesel Jeep Liberty Diesel
10709 messages, Last post on Dec 07, 2009 at 7:59 PM
You are in the Jeep Liberty and Jeep Liberty Diesel Forum. Your Hosts are steve_ & tidester
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Replying to: tidester (May 01, 2009 12:45 pm)
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Replying to: mdamick (May 01, 2009 7:44 pm)  I doubt that my van will see 150,000 miles in our household but if the tranny dies while we have it, I'll let you know. 250,000 is impressive! |
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Hello all, I have noticed that a number of general posts are in reference to milage. I am currently working on that issue. As soon as I have some real data and run time I will post the results. But for now under normal conditions, the real key is to not rev over 2000 rpm. I did a series of tests that show the best milage ( 24 mpg ) will be consistant if driven at 2000 rpm and lower. If some one can figure out how to raise the rear end ratio up a bit to allow 75 mph to be achieved at 2000 rpm that would be ideal. For those that wish to attempt these tests, remember those jack rabbit starts from a dead stop position are not good as rpm's jump well over 2000 every time. Later gang
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Replying to: tnilc99 (May 02, 2009 12:09 am)
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Replying to: mdamick (May 02, 2009 5:40 pm) What exactly is a overdrive auxiliary transmission? I mean can you elaborate a bit to give me an idea exactly what it will take to accomplish this task. I was thinking more on the idea of installing a taller gear in the rear end if possible. Engines I have no problem understanding and working, I just dont know that much about transmissions. |
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Replying to: mdamick (May 02, 2009 5:40 pm) My observation of several types of mechanical assemblies make me say that when a lower torque gearing is used, longevity is increased. What costs us more trouble on the long run? |
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Caribou, That is an excellent point, which brings me to the next question. When you have a total break down of a torque converter due to excessive engine torque being delivered to the tranny, What portion of the converter fails due to this condition? I wouldnt think that the little bit of additional ratio necessary to achieve 75 mph at 2000 rpm would change torque converter load that much, but really not sure. Right now I turn 2000 rpm at 70 mph.
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Replying to: tnilc99 (May 03, 2009 11:39 am)
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Replying to: chester5 (Apr 30, 2009 1:09 pm)
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