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Old 12-09-2023, 09:11 AM   #1
Skoolie
 
Join Date: Mar 2020
Location: Full-Timers
Posts: 117
Year: 2001
Coachwork: International
Chassis: 3800
Engine: DT-466e, AT-545
What fluid for AT-545 transmission, and how much?

Just noticed my AT-545 fluid is a bit low, or really lowÖ donít know yet. I have put Valvoline ATF in it before, but now I canít find a source for why I used that fluid and Iím questioning myself. Is it a problem that it has this fluid in it? Should I just top it off with the same fluid? Also how much does it take?
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Old 12-09-2023, 11:58 AM   #2
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Join Date: Sep 2017
Location: Swansboro,NC
Posts: 3,007
Year: 86
Coachwork: Thomas
Chassis: Ford B700
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Quote:
Originally Posted by Beeb2 View Post
Just noticed my AT-545 fluid is a bit low, or really lowÖ donít know yet. I have put Valvoline ATF in it before, but now I canít find a source for why I used that fluid and Iím questioning myself. Is it a problem that it has this fluid in it? Should I just top it off with the same fluid? Also how much does it take?
how much did you put in of the valvoline?
you should be looking for a fluid comparable to TRANSYND.
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Old 12-09-2023, 02:16 PM   #3
Skoolie
 
Join Date: Mar 2020
Location: Full-Timers
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Year: 2001
Coachwork: International
Chassis: 3800
Engine: DT-466e, AT-545
Quote:
Originally Posted by Jolly Roger bus 223 View Post
how much did you put in of the valvoline?
you should be looking for a fluid comparable to TRANSYND.
Back in 2020, I had my transmission line leak and I lost most of not all of my fluid. This is what I replaced it with. I used about 3 gallons back then. Iíve driven from New Mexico to Florida and back since then.
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Old 12-09-2023, 04:13 PM   #4
Skoolie
 
Join Date: Mar 2022
Location: Middle TN
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Year: 2008
Chassis: IC RE (PB30500)
Engine: Maxxforce DT
AT-545 call for Dexron-II on the spec sheet, I'll put a scan of it below. The Valvoline Multi-Vehicle Full Synthetic ATF meets Dexron-II standards according to it's own spec sheet, I'll upload the pdf for it. It's perfectly fine to use that fluid.

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Under oil type you will see Dexron-II is recommended

US_Val_MLMultiVehicle_ATF_EN.pdf

On page two under GM it has Dexron-II qualifications

If that's the fluid you can get ahold of easily. Keep on using it.
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Old 12-09-2023, 08:56 PM   #5
Skoolie
 
Join Date: Mar 2020
Location: Full-Timers
Posts: 117
Year: 2001
Coachwork: International
Chassis: 3800
Engine: DT-466e, AT-545
Awesome. Thatís a relief. I definitely freaked myself out this morning when I couldnít figure out why I started using that fluid.
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