Transmission fluid evolution..
My old burb was designed for Dex III. I have of course been using Dex-6 on the occasional drain and fill. I went to the store to buy some Dex 6 the other day and all they had was a synthetic Dex-6/M...
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On my tundra i just did my first transmission service . Drained 4 qt out and out 4 qt in at 140k. Mine is a full sync world ATF and it is suppose to be lifetime. i plan to do it another one in 60k.
