Overfilling a G56
10-31-2009, 11:53 AM
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Overfilling a G56
Just got done changing the fluid in my G56.... I didn't overfill it by 1 quart like I have read on here to do. Is there anything wrong with not overfilling a G56? I noticed that after changing the fluid, that it is a little harder to get in each gear.... The temperature did drop 30 degrees since yesterday, or maybe I am just thinking about it to much... Thanks in advance.
10-31-2009, 03:01 PM
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No need to over fill the G56. I did mine at 60K miles and it has been fine, I'm now at 116K miles. I will be changing it again at 120K. I used Mopar ATF+4 and the feel of the trans didn't change any. They will be a little tougher to shift when cold. Once warmed up all is well again.
10-31-2009, 04:45 PM
#4
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I filled mine with Amsoil ATF and gained marginally better cold morning shifts. I always delay the 2-3 shift for a block or two until the oil warms up some.
10-31-2009, 11:42 PM
#5
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Like above, no real need to overfill the G56. I did mine at 45k miles and it feels the same. I used Mopar ATF+4. I do notice it shifts a little harder when cold but also smooths out after a few miles of driving and warming up. I'm sure you are fine.
11-01-2009, 01:32 AM
#6
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for those that tow the front bearing does not get the cooling it needs unless it has the extra quart. some were shipped from the factory near a quart low and a lot of them were destroyed. we got one of them but caught it at 12,000 miles when we installed the trans-cool the fluid was burnt. we replaced the bearing and seal the case is aluminum and i was not sure i caught in time but that was in early 06 now has 170,000 and no problem
11-01-2009, 07:54 AM
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I changed my fluid to the Amsoil ATF, improved shifting moderately, still a little stiff when cold. I do not add the extra quart. Have had NO problems with the tranny. I change it every 15K.
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11-02-2009, 01:53 AM
#9
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How much fluid does the G56 hold? When should it be changed? Is it hard to do in the garage? I bought this truck with 22,000 miles on it. Just over 63k now and I haven't changed it.
11-02-2009, 04:49 PM
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11-02-2009, 08:36 PM
#14
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it holds 6 quarts
no worry of blowing seal
trans-cool holds 1 quart
over fill 1 quart
total 8 quarts
change every 100,000 miles
my shop has a pump and i just hold a rag around the tube for the extra quart most fill through the shifter
no worry of blowing seal
trans-cool holds 1 quart
over fill 1 quart
total 8 quarts
change every 100,000 miles
my shop has a pump and i just hold a rag around the tube for the extra quart most fill through the shifter
11-02-2009, 08:45 PM
#15
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Owners manual says every 60k miles but I would do it every 40k or so depending on driving and towing
Very easy to do in your garage
