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Engine & DrivetrainDiscussions about the engine and drivetrain of your vehicle.
This is a discussion thread titled "Synthetic ATF?", within the Engine & Drivetrain forum, part of the Technical & Vehicle Assistance Forums category.
My results have been the same as everybody else. I can't say if it was the new ATF that made it smoother or the fact I now have synthetic. I'm glad I did it none the less. Make sure you get a complete flush with a machine that is designed to do that. Don't just replace the fluid in the pan.
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"You play the hand you're dealt. I think the game's worthwhile." -C. S. Lewis
Have anyone used Mobil1 synthetic ATF in their Tundra`s?Is there any difference in shifting?
Mobil 1 ATF is not the right stuff for 2003 Tundras and other Toyota transmissions that require Toyota T-IV ATF. Amsoil says that it's ATF is OK for T-IV, and if so, that's the only synthetic ATF for these transmissions. Lubegard says that it's black bottle supplement converts any DexronIII ATF to T-IV, so that would include Mobil 1. Otherwise, you need to buy T-IV from the dealer. http://www.amsoil.com/products/atf.html http://www.lubegard.com/automotive/trans_atf_hfm.html
If you have a transmission that requires Toyota T-IV ATF and use anything else, and if you have a warranty claim, lose your voice. If Toyota knows that you didn't use the right stuff, they won't pay.
Ken
__________________
You get what you inspect
Not what you expect.
S&S Long Tube Hi-Torque Headers
TRD/Eaton Limited Slip Differential
Gibson exhaust system
Hellwig Rear Antisway Bar
Sylvania Xenarc H.I.D. X1010 Auxiliary Low Beam Driving Lights
Schaeffer Engine Oil, ATF, Differential Oil
Racor LFS22825 full-flow transmission filter
Towing a 21' Bigfoot trailer using a Hensley Arrow hitch, Jordan brake controller, McKesh mirrors
Mobil 1 ATF is not the right stuff for 2003 Tundras and other Toyota transmissions that require Toyota T-IV ATF. Amsoil says that it's ATF is OK for T-IV, and if so, that's the only synthetic ATF for these transmissions. Lubegard says that it's black bottle supplement converts any DexronIII ATF to T-IV, so that would include Mobil 1. Otherwise, you need to buy T-IV from the dealer. http://www.amsoil.com/products/atf.html http://www.lubegard.com/automotive/trans_atf_hfm.html
If you have a transmission that requires Toyota T-IV ATF and use anything else, and if you have a warranty claim, lose your voice. If Toyota knows that you didn't use the right stuff, they won't pay.
Ken
Wrong info Ken. Type TIV is Mobil 1 ATF. In reality any syn ATF would be the equivilent! If you call Mobil they'll tell you the same thing!
If you can get something in writing from ExxonMobil saying that Mobil1 ATF qualifies as Toyota T-IV, great!
Ken
__________________
You get what you inspect
Not what you expect.
S&S Long Tube Hi-Torque Headers
TRD/Eaton Limited Slip Differential
Gibson exhaust system
Hellwig Rear Antisway Bar
Sylvania Xenarc H.I.D. X1010 Auxiliary Low Beam Driving Lights
Schaeffer Engine Oil, ATF, Differential Oil
Racor LFS22825 full-flow transmission filter
Towing a 21' Bigfoot trailer using a Hensley Arrow hitch, Jordan brake controller, McKesh mirrors
Wrong info Ken. Type TIV is Mobil 1 ATF. In reality any syn ATF would be the equivilent! If you call Mobil they'll tell you the same thing!
I wish people would quit posting this without something more concrete for evidence. All of my research does not support this claim. Mobil 1 specifically indicates in their product data sheets that the synthetic ATF is not compatible with Toyota Type T-IV by not listing it. If Mobil 1 ATF was compatible with Toyota Type T-IV it would be listed on the product data sheet along with all the other types. My personal experience is a call to Mobil 1 800 number and they told me not to use it.
Toyota Type T-IV is a synthetic fluid. Why would you prematurely change it out for a different synthetic fluid that is most likely not compatible?
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2003 Tundra SR5 Access Cab - Phantom Perl Gray, 4WD TRD
LSD, Tow Package, Front Skidplate, Auto Dim Compass/Temp Review Mirror, Factory Tonneau Cover, PPD Billet TB Cover , GFX Chrome Nerf Bars
Stone Mountain Racing Headers, Modified Stock Y Pipe, Custom Exhaust Pipes, Flowmaster Delta 50 Series, Polished Stainless Tips
Blaupunkt San Jose Head, Delphi XM Satellite Radio, Kenwood KFC-1779ie (Front), Rockford Fosgate FRC 3206 (Rear), Terk XM11 Antenna
there are many instances of not listing a perfectly compatible product simply becase the product is too new, untested, or is simply a new model year, hence many products which are said to be incompatible with different model year tundras, when in fact the company selling the product is simply erring on the side of untested caution.
not that i'm agreeing or disagreeing with the claim, but a lack of a statement of compatibility does not mean that a new product is incompatible, it may simply be untested, in which case they will say "incompatible" when you call in order to err on the side of caution.
I wish people would quit posting this without something more concrete for evidence. All of my research does not support this claim. Mobil 1 specifically indicates in their product data sheets that the synthetic ATF is not compatible with Toyota Type T-IV by not listing it. If Mobil 1 ATF was compatible with Toyota Type T-IV it would be listed on the product data sheet along with all the other types. My personal experience is a call to Mobil 1 800 number and they told me not to use it.
Toyota Type T-IV is a synthetic fluid. Why would you prematurely change it out for a different synthetic fluid that is most likely not compatible?
I wouldn't cause I have an 03 with syn fluid type TIV. Plus I work at the dealer and can get the TIV for the same price as mobil 1. However the T IV come from the mobil distributor and according to him they come from the same place and in the same bottle (different label). Hey I'm just a tech, but the oil guy should know!
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However the T IV come from the mobil distributor and according to him they come from the same place and in the same bottle (different label). Hey I'm just a tech, but the oil guy should know!
He's just a truck driver or counterman, or whatever. How does he know for sure.
Ken
__________________
You get what you inspect
Not what you expect.
S&S Long Tube Hi-Torque Headers
TRD/Eaton Limited Slip Differential
Gibson exhaust system
Hellwig Rear Antisway Bar
Sylvania Xenarc H.I.D. X1010 Auxiliary Low Beam Driving Lights
Schaeffer Engine Oil, ATF, Differential Oil
Racor LFS22825 full-flow transmission filter
Towing a 21' Bigfoot trailer using a Hensley Arrow hitch, Jordan brake controller, McKesh mirrors
...if you don't want to pay the $$$ for a shop to do the flush, it's very easy to do with a friend, using the engine to pump out the old fluid.
-sean
Quick question,
Do you mean in this comment that you run the engine to drain the rest of the tranny oil out of the transmission? If not, please enlighten me with your wisdom.
Synthetic ATF?
It seemed to shift much smoother without any jerking. 
