Hi all... Quick question. I'm not sure if this is a brake fluid leak however after sitting over night, I saw a small clear drop of oily substance under the front of my car, under the frame, where the brake line runs. I have an oil leak that's built up all sorts of sludge under my car so I wasn't able to tell just by looking at the lines. Anyway, I wasn't too concerned and drove to work - no issues. My commute home can be up to 3 hours in traffic, so I think I'd definitely know if I had a leak with all the stopping.
I'm at work right now so I can't really hose down the affected area and give it a good test, however I did pump the brakes and hold them down firmly with the car off. I also left the car running so the brake power booster would kick in and held the brake pedal down with a little force for 2 minutes - I did that about 3 times. The pedal felt normal, as it usually does, it didn't go to the floor and held it's usual stiffness. I looked under the car in the affected area and didn't see any drips (again, there's oil and sludge build up, but I can still see the brake lines - they're just covered with oily sludge/dirt). Given the fact that I drove home in traffic last night, and back to work again just fine today - on top of the brake pedal test I tried, what are the chances that I have a leak in that area (my master cylinder was filled to it's normal level).
p.s. I was a bit thrown off because, correct me if I'm wrong, a small drop of brake fluid that dripped on the cement garage floor would have dried up after sitting over night (so perhaps it's something else - maybe oil/sludge dripping it's residue)?
Hopefully I'm just paranoid
. I have a 3 hour commute on the way home (in traffic) so I'm guessing that will be the final test to see if it's the brakes (assuming a 3 hour drive in traffic would empty the fluid even with the smallest leak)???