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ok to mix atf brands?

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Old 01-25-2004, 08:31 PM
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hello,

i have the 4l60e in my truck. im wondering is it ok to mix different brands of atf?

i just wanna do a plug drain change(i like to every 4-5k). my truck only has 4k miles on it so i dont need to do a filter or full flush, but i wanna change some fluid since its so easy.

is it ok to run half stock stuff and then put in my own other half(castrol,penz, etc)?? obviously i would put in exactly the stuff the book recommmends so its the same substance as the stock....

thanks for any help
Old 01-26-2004, 09:48 PM
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Conservatively:It shouldn't hurt anything if you use a DEX III rated fluid.




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