I use regular dot3, if I switch to dot5 I'd have to flush out all the old stuff first which is a hassle. If I had the system apart, I'd do it, only real benefit for me would be that it wouldn't eat my paint, but it's very pricey though. ----- Original Message ----- From: "John M Brauninger" <flightsweep@xxxxxxxx> What brake type of brake fluid have you used in these cars? DOT 5 silicone or DOT 3 glycol?