dot 3 or dot 4 brake fluid

[99_300ex]

ok so well my 300ex was running low on brake fluid so i put dot 3 in but it says to use dot 4. well i have noticed that they are a little weaker could it be because of the dot 3 instead of the dot 4.

Jeremy

[Snow]

Have you checked your calipers lately?

[99_300ex]

sorry im not good with brakes what exactialy are calipers? sry
Jeremy

[Snow]

Calipers are the two peices that rub against the rotor (the disk shape part). They might be worn down. Have you been hearing a "grinding" sound when trying to stop?

[99_300ex]

ya i hear a grinding sound right at the very end of the stop. and are you talking about the break pads cause i just checked them they are fine for a lil longer

[ethanp87]

you should use a dot 4 it is made for hotter systems like disk brakes.

[Scro]

Originally posted by nacsracer250r
Calipers are the two peices that rub against the rotor (the disk shape part). They might be worn down. Have you been hearing a "grinding" sound when trying to stop?

the pieces that rub against the disk are the brake pads:confused:

Originally posted by 99_300ex
ya i hear a grinding sound right at the very end of the stop. and are you talking about the break pads cause i just checked them they are fine for a lil longer u need new brake pads...thats what that grining sound is;)

it dont really make a grinding sound. I got worn out pads on my quad and it makes more of a vibrating sound or buzz when i brake. just ofr the record I am driving on worn out pads because the disk is bent anyways.

[ReconRider25]

Calipers are the two peices that rub against the rotor (the disk shape part). They might be worn down. Have you been hearing a "grinding" sound when trying to stop?

those arent calipers. theyre brake pads. the caliper is what the brake pads are held in. and i would reccommend using the correct fluid next time. i dont think its a good idea to mix types.:ermm: