transmission radiator - yes/no? why?
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transmission radiator - yes/no? why?
although I have already modded a radiator for the transmission hopefully for longer life of it at lower oil temp, would like to have your comments about this yes/no? why?
btw, i drive about 50km a day in a crowded city with average speed of 20kmh my tranny failed 2 times and just got it rebuilt completely (and added radiator)
will take some pix later at where/how the radiator hang
btw, i drive about 50km a day in a crowded city with average speed of 20kmh my tranny failed 2 times and just got it rebuilt completely (and added radiator)
will take some pix later at where/how the radiator hang
#2
It gets a lot of constant shifting doing that. And its probably hot weather too. I suppose a trans cooler would help, I don't really know a good place to put it though. Are you using Toyota fluid in the transmission?
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Toyota fluid isnt easy to reach here, i use castrol instead. will post a picture of where it is installed. its a secret now
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its 1990
#7
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Any JWS 3309 spec fluid would work just fine. Toyota T-IV is the easiest/cheapest to get in the states but that is likely not the case elsewhere.
Mobil formulated the fluid originally for Aisin-Warner, but it is sold under the Toyota, Ford, GM, Volvo, Mazda, Nissan, and several other brands. Castrol also makes a 3309 spec fluid.
That said, a straight 3309 spec fluid is a better fit than a "universal" transmission fluid that lists compatibility with T-IV/JWS-3309 specification.
http://www.mobil.com/USA-English/Lub..._ATF_3309.aspx
Mobil formulated the fluid originally for Aisin-Warner, but it is sold under the Toyota, Ford, GM, Volvo, Mazda, Nissan, and several other brands. Castrol also makes a 3309 spec fluid.
That said, a straight 3309 spec fluid is a better fit than a "universal" transmission fluid that lists compatibility with T-IV/JWS-3309 specification.
http://www.mobil.com/USA-English/Lub..._ATF_3309.aspx
Last edited by PureDrifter; 11-05-15 at 04:22 AM.
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#11
What are the temperatures in your area? Does the car have lots of weight in it? Are there a lot of hills to go up?
Is the car used as a work car like a taxi? And when it comes to Lexus transmission problems the fluid does play a huge role in it. Just search the forums, it is the number one cause of transmission failures using the wrong stuff. Spec numbers or not. Now if your transmission was rebuilt with non Toyota parts that is friction material and rubber parts, and the torque converter is new or reman, then you could use the aftermarket transmission fluid that is close to spec. just remember the shift calibrations are for a certain fluid with its friction modifiers, so either shift feel or shift slipping can end up wearing the parts faster. I do not think it is a good idea to mix fluids.
The friction materials in the transmission have the fluid soaked into them, putting some other fluid in could cause some kind of reaction or modify the friction in an unknown manner.
Is the car used as a work car like a taxi? And when it comes to Lexus transmission problems the fluid does play a huge role in it. Just search the forums, it is the number one cause of transmission failures using the wrong stuff. Spec numbers or not. Now if your transmission was rebuilt with non Toyota parts that is friction material and rubber parts, and the torque converter is new or reman, then you could use the aftermarket transmission fluid that is close to spec. just remember the shift calibrations are for a certain fluid with its friction modifiers, so either shift feel or shift slipping can end up wearing the parts faster. I do not think it is a good idea to mix fluids.
The friction materials in the transmission have the fluid soaked into them, putting some other fluid in could cause some kind of reaction or modify the friction in an unknown manner.
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again, i add a cooler to lower tranny temp (like many other newer car do)
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