IS T-IV backwards compatible with DEXIII and is Mobil 1 a safe alternative
#1
Driver
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Hey everyone,
My tranny fluid is still somewhat red but the edges when put to a piece of paper are dark which may indicate its time for a tranny fluid drain and fill. Its a 97 es300 so the manual calls for DEXIII, but I prefer not to put in the SuperTech Wal Mart brand or anything that;s not "brand name". I have an unopened extra quart of Mobil 1 ATF that's a few months old sitting around from when I did my power steering change, so I was considering using that, but part of me also wants to stick with OEM spec.
I made a few threads about this in the past and was leaning towards Amsoil, but at this point I think I want to just go and pick it up from the store and Mobil 1 and T-IV seem to be the only good candidates.
My question is, is that if I do say 3 drain and fills over the course of a few months is it safe to have Mobil 1 mixed with old tranny fluid. And on the same note is T-IV backwards compatible and safe with the old DEXIII fluid.
The goal is safety from failure haha.
Thanks for your help!
My tranny fluid is still somewhat red but the edges when put to a piece of paper are dark which may indicate its time for a tranny fluid drain and fill. Its a 97 es300 so the manual calls for DEXIII, but I prefer not to put in the SuperTech Wal Mart brand or anything that;s not "brand name". I have an unopened extra quart of Mobil 1 ATF that's a few months old sitting around from when I did my power steering change, so I was considering using that, but part of me also wants to stick with OEM spec.
I made a few threads about this in the past and was leaning towards Amsoil, but at this point I think I want to just go and pick it up from the store and Mobil 1 and T-IV seem to be the only good candidates.
My question is, is that if I do say 3 drain and fills over the course of a few months is it safe to have Mobil 1 mixed with old tranny fluid. And on the same note is T-IV backwards compatible and safe with the old DEXIII fluid.
The goal is safety from failure haha.
Thanks for your help!
#2
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Yes, you can mix the Mobil 1 ATF with your old tranny fluid. I had to do the same thing when I changed from Type IV to Amsoil. I recently changed from Amsoil to Redline D4 in part because I want a change but also I've been studying viscosity differences and oil analyses and my two finalists were the Redline D4 or Royal Purple's Max ATF. The Mobil 1 is somewhat close in spec to the Type IV (they're actually both Exxon Mobil products), but with my RX300 having a modified tranny and torque converter (that runs a bit hotter) I need a bit better protection.
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SuperCoupe400
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05-09-08 08:07 PM
alternative, atf, backwards, compatibility, compatible, fluid, istiv, iv, lx470, max, mobil, purple, royal, tiv, transmission, viscosity