I'm looking for some opinions-

I have a tired '61 Olds Ninety Eight convertible project. I'm in the midst of going through the entire brake system. It's almost totally shot, so every component will be either new or rebuilt.

Since I'll be starting with a new & empty system, I'm considering using DOT 5 fluid. I used it once before with excellent results, but I'd still like to hear some thoughts & experiences of others.

Thanks!

Chuck

Chuck, I've never used 5, so I can't offer an opinion. I had good luck with DOT 4 especially on the Toronado with its outrageous brake temperatures.

I'll sticky this for a while and see what we get.

I've used DOT5 in several cars (including Oldsmobiles) with no problems at all. The beauty of DOT5 is that if you spill it on the paint, it makes a nice silicone "wax".

Hello Chuck:

Echoing Joe, DOT 5 has been in our '66 Mustang for 6 years. It's been completely trouble free. ALL the hydraulic brake components were new
before DOT 5 went in so there was no risk of contamination... The Mustang
was driven with DOT 5 in below freezing weather back east & now in 100+
temps in Arizona. I've never had to add a drop either.

I recommend it...

Paul

I echo the replacement of rubber parts before converting to DOT5, but I will admit that in my young and stupid days, I simply drained the DOT3 out of a 71 Cutlass and filled it with DOT5. The brakes worked fine for about 10 years (though this was not a daily driver) and I never did need to add any fluid.

I put DOT 5 in my 4-4-2, back in 1984, and the brakes are still working fine. I have added a little fluid over the years, but very little.