Dot4 fluid can be used and mixed with dot3 brake systems. If your brake system calls for dot4 fluid, you can not use dot3 fluid in the system, regardless of being only dot3 or mixed. Dot3 system = either dot3 or dot4 fluid, or a mixture of the two. Dot4 system = only dot4 fluid, and NO dot3 fluid.
They can be mixed together.
Yes but once you do there is no turning back and no mixing regular motor oil ever again with the synthetic oil....only straight synthetic....or use semi synthetic....now that can be mixed with regular motor oil in a pinch.
They can be mixed.
Dermatitis? Engine oils are for engines not your skin.
YES! "Regular" oil is what is mixed with synthetic to make semi-synthetic. Try to use the same brand. I've heard it's not good to mix the different additives that different companies use.
Oil treatments is a total waste of money so don't mix anything with the synthetic oil.
Yes. It will cause the seals to swell up in the master cylinder. This will cause a loss of braking. You need to remove the fluid and flush out the master cylinder(with clean brake fluid) immediatly.
check brake hoses. check brake fluid condition, if fluid is contaminated or mixed with wrong fluid, calipers can lock-up or stick. check caliper bolts, hardware, caliper brackets. replace if broken, bent, or missing.
That's the brake fluid bleeder and it should be on top of the caliper. If it is on the bottom you have the left and right caliper mixed up.
Yes, you can use either DOT 3 or DOT 4 and they can be mixed. You cannot use DOT 5.
Open Hood and support, LOOK at Engine on YOUR right side which is the LEFT side of the Engine bay. LOOK for a LARGE round object at the FIREWALL which will be the BRAKE VACUUM CHAMBER/BOOSTER. Directly attached to it is the BRAKE MASTER CYLINDER which has the BRAKE FLUID RESERVOIR(S) attached. OPEN the cap(s) and add FLUID as needed. DO NOT leave the Cap(s) off any longer than needed as BRAKE FLUID is Agroscopic meaning it draws Moisture from the Air and Moisture mixed with Brake Fluid is very detrimental to the Brake system. If there is very little or no Fluid in the Reservoir(s), BLEEDING AIR from the entire system will be required.