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Old 12-19-2011, 10:13 PM
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WK2 Transmission Oil

We really like our new WK2 Laredo X with Off Road Adv Pack II. Only disappointment is the Michelin Latitude tires. I always think these tires are the weak link when doing serious 4WD roads. I also tow a 5000 lbs travel trailer and have run the trans temp well over 200 on hills. I was thinking about a transmission oil change. Can anyone provide tips on how to change the trans oil?
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Old 12-19-2011, 11:09 PM
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Re: WK2 Transmission Oil

Welcome! I'm going to move your post over to the WK2 where you might get more of a response.
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Old 12-20-2011, 07:44 AM
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Re: WK2 Transmission Oil

Quote:
Originally Posted by mcjeep View Post
We really like our new WK2 Laredo X with Off Road Adv Pack II. Only disappointment is the Michelin Latitude tires. I always think these tires are the weak link when doing serious 4WD roads. I also tow a 5000 lbs travel trailer and have run the trans temp well over 200 on hills. I was thinking about a transmission oil change. Can anyone provide tips on how to change the trans oil?
Never just change your transmission oil. You should do a flush. It is hooked up to a machine that flushes the trans including the torque converter. If you just drain the pan you are only getting about 1/3 of the fluid out. You should also change the trans filter when you have this done. I would also recommend that you put in a premium trans fluid such as Amsoil or Royal Purple. They cost more but as the saying goes....you get what you pay for.
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Old 12-20-2011, 09:58 AM
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Re: WK2 Transmission Oil

The WK2 uses a sealed transmission so I doubt it is very consumer friendly. As mentioned above it is probably best and easiest to take it to the dealer and have them flush and change to a high performance fluid.
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Old 12-20-2011, 10:13 AM
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Re: WK2 Transmission Oil

Also, most transmission shops can replace the fluid. The transmission behind the V8 has been around for a decade, should be lots of experience with it everywhere.
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Old 12-20-2011, 11:30 AM
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Re: WK2 Transmission Oil

My Laredo X has the 5.7 liter hemi with the "multi speed overdrive automatic transmission". I thought this was a new generation transmission rather than around for a decade???. I like the idea of going to a transmission shop for the oil flush and change, but is there enough experience with this transmission at the corner quick lube?
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Old 12-20-2011, 12:12 PM
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Re: WK2 Transmission Oil

Quote:
Originally Posted by mcjeep View Post
My Laredo X has the 5.7 liter hemi with the "multi speed overdrive automatic transmission". I thought this was a new generation transmission rather than around for a decade???. I like the idea of going to a transmission shop for the oil flush and change, but is there enough experience with this transmission at the corner quick lube?

I would never let "Skippy" from the corner quick lube touch any of my cars. Go to a shop with ASE certified mechanics. Trust me, you'll be glad you did.
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Old 12-20-2011, 12:45 PM
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Re: WK2 Transmission Oil

Google 545RFE or check the following link for a history. Marketing has called the transmission "multispeed" for some time, currently called a "six speed". Torque converters have had a few changes over the years but the transmission has basically remained the same, with parts updates now and then.

http://www.allpar.com/mopar/transmissions/545RFE.html

I would go to a competent transmission shop that you trust (has a good reputation).
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