Harm in Mixing DOT3 with DOT4??????

[SHU-DOG]

I got 3/4 of the way through the brakes and ran out of my DOT4 Motul.

I was replacin the rears and running low. I didnt want air bubbles trapped in the line so i put in some DOT3 Willwood High Temp. Almost the exact same as the Motul DOT4 temp rating.

So any issues?

Should i flush the it all with DOT4?

Thanks SHU

 

[NBT]

Thats about the only difference between the 2...temp rating. Should be no problem...DOT 5 would have been a problem.