So maybe this should go in S2000 talk, but maybe not.

Earlier this year I was at the track and had experienced over-heating my brakes. Or atleast thats what I think it was. So a couple months ago I had the brake fluid changed to Motul 5.1.

Recently I noticed that under heavy braking (on the street) my stopping distance seemed to increase (get worse) I have not been to the track since I changed the fluid. So just wanted to ask : is it possible that higher DOT brake fluid can increase braking distances under NORMAL driving situations?

Thanks for any kind of feedback I get except the

 

Sounds like you didn't bleed the lines completely. I would do a re-bleed to make sure there is no air in the lines, then post again if you are still having problems with distance

 

Answer - No.

Re-bleed your lines, but more than likely your pads are glazed from being overheated at the track.

If you're bored, take out your front pads and scuff them up really good with sandpaper...making sure to breathe in as much asbestos as possible.

 

 

Wouldn't the pedal feel different?

 

 

Maybe your tires are just losing grip. Could be anything.

If the track day was several months ago, the chances of it having anything to do with the track day are effectively nil.

 

Tires tend to have less grip as temperatures fall.

 

The fluid can have different "feel" based on compressibility (really viscosity). It is way too quick to be water being an issue. I suspect that the pads are glazed as well. Easy enough to inspect. If the pads look rough, the I would re-bleed and see.

 

If pedal feel is unchanged (firm), it's pads or tires. If pedal is getting long, it's fluid.