Which Brake Fluid for E86 Coupe
- Thread starter chanlon1
- Start date
...and a lot of DOT4 fluids will out-perform DOT5.1 fluids...just that they haven't bothered spending thousands getting them re-tested...and thus aren't charging a premium for themhopz121 said:Yep that’s fine and the normal fluid to use.
Unless you are tracking the car any dot 4 should be ok
For example ATE DOT4 200 'Superblue' (blue dye has now been removed I believe) has a dry boiling point of around 280ºC and wet boiling point of over 198ºC (DOT5.1 specs are >260ºC dry and >180ºC wet)...ATE's SUPER DOT 5.1 fluid is 265ºC dry / 180ºC wet.
Remember DOT5 fluid is silicon-based and is NOT compatible with 3/4/5.1.
mmm-five said:...and a lot of DOT4 fluids will out-perform DOT5.1 fluids...just that they haven't bothered spending thousands getting them re-tested...and thus aren't charging a premium for themhopz121 said:Yep that’s fine and the normal fluid to use.
Unless you are tracking the car any dot 4 should be ok
For example ATE DOT4 200 'Superblue' (blue dye has now been removed I believe) has a dry boiling point of around 280ºC and wet boiling point of over 198ºC (DOT5.1 specs are >260ºC dry and >180ºC wet)...ATE's SUPER DOT 5.1 fluid is 265ºC dry / 180ºC wet.
Remember DOT5 fluid is silicon-based and is NOT compatible with 3/4/5.1.
Fully aware of this i use high performing dot 4 brake fluid in two of my own cars
Just answered the OP’s question.
I've the bleed kit that I used on the Boxster before, one of the ones that screws into where you top up the fluid, you pressurise it and then bleed at the caliber and work your way round the car.
The bleed nipples don't look as if they have ever been loosened, they look super rusty, and I've be scared they may snap.
With the car going to BMW tomorrow, I may look at getting them to refresh the fluid. that way they can loosen them. When I get round to doing the pad and discs myself, I can do them without having to fully bleed the system. But, if I decided to remove the calipers, I may have to re-do the fluid completely.
The bleed nipples don't look as if they have ever been loosened, they look super rusty, and I've be scared they may snap.
With the car going to BMW tomorrow, I may look at getting them to refresh the fluid. that way they can loosen them. When I get round to doing the pad and discs myself, I can do them without having to fully bleed the system. But, if I decided to remove the calipers, I may have to re-do the fluid completely.
I 2nd the Castrol SRF, if tracking the car. It's not cheap though. I tried a lot of brake fluids for track use and with SRF I never need to re-bleed my brakes at the track. For street use I use Valvoline full synthetic Dot 4 in my Z. But as others have stated, any good Dot 4. I would be tempted to run a Dot 5.1 also.
