ATF top off?
11-02-2015, 11:30 PM
#1
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Year: 1997
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Engine: Inline 6
ATF top off?
So here's a thought I've been having: Can you top off one brand of ATF with another?
Recently I dropped my AW-4's pan, did a complete flush (not a pressure flush) and put in some Valvoline max life d/m but ended coming up short. So I went to buy some more but they ran out and bought some Castrol d/m to not leave empty handed. Also have some Castrol transmax lying around for when I changed the transfer case. It sounds like a bad idea mixing all three, but I want your opinions.
Recently I dropped my AW-4's pan, did a complete flush (not a pressure flush) and put in some Valvoline max life d/m but ended coming up short. So I went to buy some more but they ran out and bought some Castrol d/m to not leave empty handed. Also have some Castrol transmax lying around for when I changed the transfer case. It sounds like a bad idea mixing all three, but I want your opinions.
Last edited by Mein; 11-03-2015 at 07:03 AM.
11-03-2015, 05:49 AM
#2
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Year: 1998 Classic (I'll get it running soon....) and 02 Grand
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You should be using a fluid that is compatible with the Dexron III/Mercon specification. It may say something like Dex/Merc on the bottle.
If it's Dex III/Merc, you're good. If it's not, you're not. Get it out of there!
Do NOT listen to auto parts store people tell you that you need ATF+4 in there. They think because it's a Chrysler that it runs what other Chryslers run. Not so. It's actually a Japanese transmission, used in Toyotas and a lot of other vehicles.
You might want to read this.
If it's Dex III/Merc, you're good. If it's not, you're not. Get it out of there!
Do NOT listen to auto parts store people tell you that you need ATF+4 in there. They think because it's a Chrysler that it runs what other Chryslers run. Not so. It's actually a Japanese transmission, used in Toyotas and a lot of other vehicles.
You might want to read this.
Last edited by BlueRidgeMark; 11-03-2015 at 05:53 AM.
11-03-2015, 08:12 AM
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You should be using a fluid that is compatible with the Dexron III/Mercon specification. It may say something like Dex/Merc on the bottle.
If it's Dex III/Merc, you're good. If it's not, you're not. Get it out of there!
Do NOT listen to auto parts store people tell you that you need ATF+4 in there. They think because it's a Chrysler that it runs what other Chryslers run. Not so. It's actually a Japanese transmission, used in Toyotas and a lot of other vehicles.
You might want to read this.
If it's Dex III/Merc, you're good. If it's not, you're not. Get it out of there!
Do NOT listen to auto parts store people tell you that you need ATF+4 in there. They think because it's a Chrysler that it runs what other Chryslers run. Not so. It's actually a Japanese transmission, used in Toyotas and a lot of other vehicles.
You might want to read this.
Thing is, and i dunno if this will make sense, but the castrol d/m says not to use in trannys calling for m/V, LV or SP which is what the valvoline stuff is compatible with also. Making me think both atf won't get along. The transmax stuff just says it's recommended for anything atf+3 and prior and anything else as long as it doesn' call for dex VI
11-03-2015, 01:55 PM
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It's the same kind, but not the same brand which is what's making me have doubts.
11-03-2015, 02:22 PM
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I'm thinking that any "Name Brand", quality ATF will be compatible with each other. As long as they are the same "type", I really don't see a problem. If it really concerns you, pick up a few 2 gallon tubs and go crazy draining and filling.
I have better things to do.
I have better things to do.
Last edited by diskman; 11-04-2015 at 10:37 AM.
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11-03-2015, 08:54 PM
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I'm sure it's fine to mix brands. If it's DEXRON III, you are fine. 4 may be OK in the transfer case, but why complicate it.
Yes, never power flush an AW-4. Just change whatever fluid will drain more often till it's nice and pink.
Yes, never power flush an AW-4. Just change whatever fluid will drain more often till it's nice and pink.
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