It's ok , dot 4 is an improvement formula from dot 3.
Dot 4 has a higher boiling temperature than dot 3 therefore dot 4 will make the car stop faster than dot 3. Dot 4 is used for racing purposes mainly, but it can also be beneficial when making an emergency hard stop.
If it calls for dot 5, yes. If it has dot 3 or dot 4, no.
At the earliest convenous you should bleed out the dot 3 and change it out with dot 4. More than likely the dot 3 will be fine but the difference is the dot 4 has a higher boiling point for extreme conditions. So while the dot 3 is in the system no racing or towing and the system will be just fine. If you boil the dot3 fluid in your system the brakes will become very soft or squishy.
Dot 3 or Dot 4Dot 3 or Dot 4
is super dot 4 ,compatable with dot 3 and dot 4 break fluide.
Dot 3 or Dot 4Dot 3 or Dot 4
You can use DOT 4 in place of DOT 3 but don't use DOT 3 in place of DOT 4. DOT 4 has a higher boiling point than DOT 3. DOT 4 is in there for a reason.
dot and vaginex
.
No it has not
DOT 3 and DOT 4 brake fluids are not compatible with one another. You should only use the fluid that your car manufacturer suggests.
You can use DOT 3 or 4 in your car but not DOT 5.