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Old 05-06-2014, 03:09 PM   #1
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D. Ram & Tranny Fluid Advise

I've got a 2006 Dodge Ram diesel and I'm towing a large Monty. Just looking for advise on how often you guys change your tranny fluid????
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Old 05-06-2014, 03:21 PM   #2
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Jaybird, we've got a 2008 GMC with the Duramax/Allison combo. We were towing a 3400 and now a 3725, both of which I would consider large. In our case, I follow the manufacturer's suggested maintenance for "average" as I don't tow all the time. Don't know if you have a gage/temp sensor on the transmission, but we do. I keep an eye on it to make sure it doesn't get too hot. 200 degrees is the highest I've ever gotten. 225 is starting to get "iffy" and if it starts getting up around 250 or so, breakdown of the oil starts occuring, with tranny failure a likelyhood down the road. Had it changed at 15,000 when "new" then again at 30,000, now just turned 65,000 and had it changed again. Everything looked good, and the tranny is running just fine. Probably won't do it again until it hits 100,000. But, it's all in what you are comfortable with.
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Old 05-06-2014, 03:29 PM   #3
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That helps a lot. Thank You
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Old 05-06-2014, 05:38 PM   #4
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Ours is mainly used to tow and we change the fluid every 30,000.
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Old 05-07-2014, 01:24 AM   #5
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Can not speak for Ram but TranSyd fluid is the way to go in D A have it changed at your Allison Dealer check it out
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Old 05-07-2014, 03:10 AM   #6
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Not sure when Dodge switched over to synthetic oil but if it's not then put synthetic in. It helps keep it cooler. Dealer told me that Dodge now puts it in all their trucks now.
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Old 05-07-2014, 01:51 PM   #7
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I use Amsoil and simply following the Dodge manual. As the vast and I mean the vast number of miles are towing I go by the 'B' schedule.
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Old 05-07-2014, 02:46 PM   #8
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Your tranny uses ATF+4. It is a syn fluid. The change schedule for severe use is change @ 60K. You want to change earlier, not a issue.

The owners manual and the service schedule do not match.

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Old 05-07-2014, 02:53 PM   #9
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I follow the manual for change intervals. I don't tow the RV enough to consider service as severe. My truck does thrive on work and operates the best when towing.
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