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tl dr - Mixing Brand X fluid with Brand Y fluid is of no consequence, as long as you are mixing the same grade of fluid (DOT3, 4, 5, or 5.1). In order to be rated at a given grade, it must meet the prerequisites of the grade. This has to do with wet/dry boiling points, not who makes it. With that said, you can mix DOT3, DOT4, or DOT5.1 together (each of ...


DOTX brake fluid will be the roughtly same for different brands. It will not do any damage to your vehicle when mixing brands. The thing you should keep in mind is that you need to put the same DOTX in your car if you refill. DOT4 will perform a little better than DOT3 as it is more resistant agains higher temperatures. DOT5 will be used in the racing ...

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