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02-11-2016, 04:21 PM
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#1
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Seasoned Camper
Join Date: Mar 2012
Location: Sioux Falls
Posts: 62
M.O.C. #12349
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2010 Silverado 6.6Duramaxx/Allison Trans Maint
How often(miles) do you change you Trans filter and fluid? I usually put about 20,000 miles a year (5000 miles towing). It has been 55,000 miles since I last changed the fluid/filter. Fluid smells great.
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02-11-2016, 08:20 PM
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#2
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Montana Master
Join Date: Jan 2013
Location: Bridgewater
Posts: 1,196
M.O.C. #13166
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I have never changed my fluid. Probably this spring. I change my external filter every other oil change, about 6-7000 miles. 61,000 miles on the truck and I'm the original owner.
__________________
2010 Montana 3455SA, Mor/Ryde pin, wet bolts, TST 507, Progressive HW50C, GY G614
2019 Silverado D/A 3500HD LTZ DRW CC
B&W Companion
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02-11-2016, 08:50 PM
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#3
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Montana Fan
Join Date: Oct 2005
Location: Grand Junction
Posts: 246
M.O.C. #4854
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I'm pulling with an F-250. I've changed the fluid every 30,000 miles. So far no problems at 110,000. Transmissions are expensive, It's my opinion that changing the fluid is cheap insurance.
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02-11-2016, 10:31 PM
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#4
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Montana Master
Join Date: Mar 2011
Location: Okeechobee
Posts: 2,150
M.O.C. #11206
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Hi
I have the Chevrolet dealer that sold me the truck do my maintenance and they don’t recommend changing the fluid. I did have it changed at 60,000 miles to have the new all synthetic fluid installed and that was 90,000 miles ago. I will have it sampled and sent to the lab next oil change.
Phil P
__________________
2009 Montana 3665RE
2009 Duramax 3500 DRW quad cab
personal web page https:// www.sallyscoffees.com
If you get a page not available then remove the "s" after HTTP
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02-12-2016, 01:01 AM
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#5
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Montana Master
Join Date: Mar 2012
Location: Davison
Posts: 786
M.O.C. #12331
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It is recommended to change the spin on filter at 15,000 mile intervals on the Allison. The internal filter is not part of a maintenance schedule, nor is changing the fluid. I change the spin on every other LOF-about 18,000 miles.
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02-12-2016, 02:59 AM
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#6
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Montana Master
Join Date: Aug 2009
Location: Grand Rapids
Posts: 1,896
M.O.C. #9561
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2006 chevy
i change the external filter every other oil change, usually:-)
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02-12-2016, 05:51 AM
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#7
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Montana Master
Join Date: Dec 2005
Location: Eugene
Posts: 1,058
M.O.C. #5091
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Same here as to the filter, every other oil change. The fluid was changed at 30,000 mile recommended by my dealership since I mainly use vehicle for towing.
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02-12-2016, 06:12 AM
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#8
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Montana Fan
Join Date: Mar 2015
Location: SE
Posts: 478
M.O.C. #17167
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Same here...chg external filter every other oil chg.
Haven't changed the fluid.
How about differential fluid...how often?
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02-13-2016, 12:34 AM
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#9
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Montana Master
Join Date: Nov 2007
Location: Kville
Posts: 2,865
M.O.C. #7871
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The key to transmission fluid and changing it is the type fluid it has. If it has Transynd, have it tested annually. As long as it comes back good, the fluid is good. This is from Tom Johnson, the fellow who developed Transynd...he's on another forum.
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02-13-2016, 03:51 AM
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#10
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Montana Fan
Join Date: Nov 2006
Location: WARREN
Posts: 115
M.O.C. #6547
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Have a 2001 duramax dually. Chg with Allison red filter every 25000 miles. Have always used transyd fluid and have it checked every 50000 miles. Trk has 175000 miles. Org owner. Only chg from stk allusion 1000 is a bigger pan more fluid $$$
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02-13-2016, 01:16 PM
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#11
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Montana Fan
Join Date: Nov 2005
Location: Ooltewah
Posts: 360
M.O.C. #4958
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I changed my 2001 every other year, regardless of mileage. Fluid and filter.
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02-13-2016, 02:05 PM
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#12
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Montana Master
Join Date: Oct 2004
Location: Salem
Posts: 7,592
M.O.C. #2283
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Chris I don't know about the Chevy. My Ford never needs to be changed you might check your owners manual. If it has synthetic oil it may never need to be changed.
Lynwood
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02-14-2016, 02:17 PM
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#13
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Montana Fan
Join Date: Sep 2015
Location: winter garden
Posts: 102
M.O.C. #17865
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I have an 07 classic durmax with the 6 sp Allison. I put amsoil in everything when it was brand new I change engine oil and rotate tires every 5k I change the spin on tranny filter every other oil change and replace fuel filter I flush tranny every 50k and service diffs and transfer case. I have also been in the auto repair bus my entire life so I believe in maintance
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02-15-2016, 04:02 AM
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#14
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Montana Master
Join Date: Sep 2008
Location: Bangor
Posts: 770
M.O.C. #8816
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I also own an 07 GMC and change all filter a regular intervals. Hear's something I read and it turned out to be true. Gm and GMC trucks new from the factory are notorious for not enough differential fluid. I checked mine new and sure enough it was pretty low, same with a friends truck. granted this was in 07 but why not keep doing it to save money. Also read after a few thousand miles diff's should be emptied and refilled to get all the "stuff" cleaned out.
kevin
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02-15-2016, 04:06 AM
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#15
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Montana Master
Join Date: Sep 2008
Location: Bangor
Posts: 770
M.O.C. #8816
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For anybody now itching to change their trans filter, remember to get the magnet off the old filter, clean it and put it on the new filter. also fill new filter with trans oil to replace most of what you lost.
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02-15-2016, 08:07 AM
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#16
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Montana Master
Join Date: Oct 2004
Location: Salem
Posts: 7,592
M.O.C. #2283
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A guy that works in my shop had an 05 Chevy with no oil in the rear end.
Lynwood
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02-16-2016, 12:33 PM
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#17
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Established Member
Join Date: Jun 2013
Location: Denton
Posts: 39
M.O.C. #13493
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I am a believer in Amsoil, on my third Duramax (04, 08, 12, do I need a new one??). Ran about 200,000 on the first two, slowed down on the 12 with only 110k now. Have always changed the fluids at 50K with complete synthetics. Oil change every 10K.
I also have a couple of Toyota's and we do the same thing. Tundra is 10 years, gas engine, 250,000.We run them pretty hard, but they are trucks so we expect them to hold up with the proper maintenance.
Much, much cheaper to change the fluids than the trans, or rear end, etc.
Also, suggest you do the research, synthetics work and save money in the long run. Just expensive at the change.
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