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My ATF never gets Hot? #4702148
03/21/18 03:59 PM
03/21/18 03:59 PM
Joined: Sep 2002
Posts: 2,593
VA
Gebo Offline OP
Gebo  Offline OP

Joined: Sep 2002
Posts: 2,593
VA
Without mentioning any names, I have noticed my ATF NEVER gets hot. I pulled a lawnmower on a trailer for 2 hours on the interstate and my ATF was barely warm. I know that's good. BUT...

How do I determine proper fluid level? This vehicle has a dipstick so I can check it. Do I keep it between the "COLD" hashmarks or do I add up to the "HOT" hashmarks? I ain't making this up. As soon as I got back home from the haul, I kept 4Runner running, shifted through all the gears, pulled the dipstick out, wiped it off, reinserted and the reading is slightly above the upper "COLD" marks but no where near the "HOT" range.


'98 LEX LS400 290K
'02 4Runner 230K
'05 Lex LS430 85K
'07 Lex GX470 65K
Amsoil in last two.
Schaeffer in the first two.

Re: My ATF never gets Hot? [Re: Gebo] #4702153
03/21/18 04:01 PM
03/21/18 04:01 PM
Joined: Jan 2011
Posts: 1,082
Columbus Nebraska
old1 Offline
old1  Offline

Joined: Jan 2011
Posts: 1,082
Columbus Nebraska
But is the OIL hot?


2017 Nissan Frontier 4.0 5w30
1965 Mustang 200 c/4 10w30 QS defy
1964 Ford Ranchero 302 c/4 15/40 Delo
1929 ford model A No filters, and 15/40 oil
Re: My ATF never gets Hot? [Re: Gebo] #4702157
03/21/18 04:03 PM
03/21/18 04:03 PM
Joined: Mar 2014
Posts: 3,802
NJ
Leo99 Offline
Leo99  Offline

Joined: Mar 2014
Posts: 3,802
NJ
Do you think it's not at the correct fill level? I'd fill it to the cold line when it's cold (around 65F).


Without data you're just another person with an opinion. W. E. Deming

2003 Corolla 250,000 miles (RIP)
2004 Corolla 125,000 miles
2004 Rav4 370,000 miles
2015 Camry 70,000 miles
Re: My ATF never gets Hot? [Re: Gebo] #4702159
03/21/18 04:04 PM
03/21/18 04:04 PM
Joined: Jan 2011
Posts: 799
Anaheim, CA
zorobabel Offline
zorobabel  Offline

Joined: Jan 2011
Posts: 799
Anaheim, CA
Are you determining the "hotness" of the ATF by the fluid level on the dipstick?


1997 Maxima 197k, Castrol GTX Synblend 5W-30, FL400S
2004 Corolla 197k, VWB + SSS + Rislone cocktail, MGL51516
Re: My ATF never gets Hot? [Re: Gebo] #4702171
03/21/18 04:13 PM
03/21/18 04:13 PM
Joined: Apr 2004
Posts: 7,952
New York
pbm Offline
pbm  Offline

Joined: Apr 2004
Posts: 7,952
New York
It sounds like you need to add a little ATF...unless I'm reading your post wrong?
You need to check your ATF temp.


'Journalism is Dead'
Re: My ATF never gets Hot? [Re: Gebo] #4702174
03/21/18 04:14 PM
03/21/18 04:14 PM
Joined: Nov 2006
Posts: 21,247
MA, Mittelfranken.de
Trav Offline
Trav  Offline

Joined: Nov 2006
Posts: 21,247
MA, Mittelfranken.de
What is the temp of the fluid?


ASE L1, Master. Deutsch Meisterbrief.
Re: My ATF never gets Hot? [Re: Gebo] #4702257
03/21/18 05:29 PM
03/21/18 05:29 PM
Joined: Jan 2015
Posts: 274
Cleveland, OH
silveravant Offline
silveravant  Offline

Joined: Jan 2015
Posts: 274
Cleveland, OH
What does your owner's manual say? The answer to many questions.

Re: My ATF never gets Hot? [Re: Trav] #4702298
03/21/18 06:09 PM
03/21/18 06:09 PM
Joined: Jul 2005
Posts: 31,668
NY
demarpaint Offline
demarpaint  Offline

Joined: Jul 2005
Posts: 31,668
NY
Originally Posted By: Trav
What is the temp of the fluid?


Good question. OP-How did you determine the transmission fluid temperature? The fluid level changes with the temperature. I have a chart with temperatures and a special dipstick for both my Jeeps to determine the correct level based on temperature. As the fluid gets hotter the level moves higher. As long as the level corresponds with the temperature on the chart the level is correct. Without knowing the correct temperature of the ATF the level cannot be accurately set.


God Bless Our Troops

Re: My ATF never gets Hot? [Re: demarpaint] #4702362
03/21/18 07:06 PM
03/21/18 07:06 PM
Joined: Dec 2016
Posts: 8,011
Waco, TX
Linctex Offline
Linctex  Offline

Joined: Dec 2016
Posts: 8,011
Waco, TX
Originally Posted By: demarpaint
Without knowing the correct temperature of the ATF - the level cannot be accurately set.


Yes, you cannot put the cart before the horse.

Oh, BTW... as long as you are "somewhere around there" on your fluid level, you are fine.

Don't get obsessed about your oil level being ~4mm off (up or down) or something silly like that.


"The evidence demands a verdict".
(Re:VOA)"it's nearly impossible to actually know the particular additives that are in there at what concentrations."
Re: My ATF never gets Hot? [Re: zorobabel] #4702398
03/21/18 07:40 PM
03/21/18 07:40 PM
Joined: Sep 2002
Posts: 2,593
VA
Gebo Offline OP
Gebo  Offline OP

Joined: Sep 2002
Posts: 2,593
VA
Originally Posted By: zorobabel
Are you determining the "hotness" of the ATF by the fluid level on the dipstick?


By how the fluid feels on my fingers while touching the dip stick


'98 LEX LS400 290K
'02 4Runner 230K
'05 Lex LS430 85K
'07 Lex GX470 65K
Amsoil in last two.
Schaeffer in the first two.

Re: My ATF never gets Hot? [Re: Trav] #4702402
03/21/18 07:42 PM
03/21/18 07:42 PM
Joined: Sep 2002
Posts: 2,593
VA
Gebo Offline OP
Gebo  Offline OP

Joined: Sep 2002
Posts: 2,593
VA
Originally Posted By: Trav
What is the temp of the fluid?


I was just going by feel and comparing it to how my water feels at 130 degrees coming out of my spigot at home. Maybe I should infrared it?


'98 LEX LS400 290K
'02 4Runner 230K
'05 Lex LS430 85K
'07 Lex GX470 65K
Amsoil in last two.
Schaeffer in the first two.

Re: My ATF never gets Hot? [Re: silveravant] #4702406
03/21/18 07:42 PM
03/21/18 07:42 PM
Joined: Sep 2002
Posts: 2,593
VA
Gebo Offline OP
Gebo  Offline OP

Joined: Sep 2002
Posts: 2,593
VA
Originally Posted By: silveravant
What does your owner's manual say? The answer to many questions.


You aren't understanding my question. Owner's manual can't answer this question.


'98 LEX LS400 290K
'02 4Runner 230K
'05 Lex LS430 85K
'07 Lex GX470 65K
Amsoil in last two.
Schaeffer in the first two.

Re: My ATF never gets Hot? [Re: demarpaint] #4702410
03/21/18 07:44 PM
03/21/18 07:44 PM
Joined: Sep 2002
Posts: 2,593
VA
Gebo Offline OP
Gebo  Offline OP

Joined: Sep 2002
Posts: 2,593
VA
Originally Posted By: demarpaint
Originally Posted By: Trav
What is the temp of the fluid?


Good question. OP-How did you determine the transmission fluid temperature? The fluid level changes with the temperature. I have a chart with temperatures and a special dipstick for both my Jeeps to determine the correct level based on temperature. As the fluid gets hotter the level moves higher. As long as the level corresponds with the temperature on the chart the level is correct. Without knowing the correct temperature of the ATF the level cannot be accurately set.


I was just going by feel as compared to my house hot water at 130. The fluid feels barely warm. I have touched other hot dipsticks (be nice grin) and the fluid was so hot it would burn my fingers. Maybe time for the infrared.


'98 LEX LS400 290K
'02 4Runner 230K
'05 Lex LS430 85K
'07 Lex GX470 65K
Amsoil in last two.
Schaeffer in the first two.

Re: My ATF never gets Hot? [Re: Gebo] #4702555
03/21/18 09:55 PM
03/21/18 09:55 PM
Joined: Dec 2017
Posts: 427
California
VeryNoisyPoet Offline
VeryNoisyPoet  Offline

Joined: Dec 2017
Posts: 427
California
I installed a temp gauge out of curiosity on my car. If I'm on the highway with torque converter locked, my ATF will barely get up to 130F in the winter even when hauling a full load for nearly an hour, and that's with a coolant to ATF heat exchanger in the radiator end tank.

If you want to get it really warm, drive around town such that the torque converter is working harder, since that is where most of the heat is generated in an automatic.


1998 V70 GLT / 202k miles [10w-30 Valvoline Syn w/ Maxlife Tech + Mann W917 filter]

"Use yah blinkah!"

"Be nice. The alternative involves an air horn and 7000 lumens of high beam."
Re: My ATF never gets Hot? [Re: Gebo] #4702579
03/21/18 10:24 PM
03/21/18 10:24 PM
Joined: Nov 2017
Posts: 683
South Carolina
eyeofthetiger Offline
eyeofthetiger  Offline

Joined: Nov 2017
Posts: 683
South Carolina
Your transmission will last forever. I don't see the problem.


2017 Ford Fiesta 1.0T - Valvoline SynPower 5W-20, Motorcraft FL910S
1988 GMC K1500 4.3/700R4 - Supertech 15W-40, Fram TG3980
1986 Ford Ranger 2.0 - uhh
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