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1991 Ford Tempo - Mixing brake fluid

is it advisable or safe to mix conventional brake fluid with synthetic brake fluid?

In your manual it should list what kind of brake fluid to use and that is all that I would use. Mixing the two just does not seem the right thing to do . And probably this vehicle is due for a fluid exchange and if it leaking fluid then that needs to be taken care of.

Yes, you can mix synthetic with conventional. You should not use DOT 5 fluid at all. You can use DOT 3, 4 or 5.1 synthetic or conventional.

Thank you very much for your advice.
I’m currently working on a 1962 Falcon and the only type of brake fluid on the shelf is synthetic, hence my question.
Have a good day.

1 Like

Ok or not, I’d replace it 100%. Why not?

People have been replying to your question as if you had a 1991 Tempo . So a 1962 Falcon never had synthetic brake fluid . So you need to find out just what you need and replace all of the fluid .
And what shelf only has synthetic on it ?