1/2/2023 0 Comments Brake fluid flush![]() ![]() I had to go through the "usual air bleed" procedure on Techstream several times but it worked out in the end. The process was a bit nervewracking as Techstream decided to be a bit glitchy and skipped the LF caliper. Used Techstream, 3 cans of Honda DOT 3 (12oz per can) and a friend for help. Just did a brake fluid flush tonight at 35,684 miles. I'd rather follow engineering considerations than whatever the legal/political/competitive factors that drive Toyota. If engineering completely controlled the recommendations, then we wouldn't see such differences. Oil change recommendations differ between Europe, Canada, and the US for the exact same car. In any case, someone else is going to demonstrate the problems long before I reach that point.Īs for the CT200h, it seems to demonstrate that different market conditions drive different service recommendations. So I'm interested in seeing any test results, but it's more of an intellectual curiosity than any expectation of problems. Basically, the people who boil brake fluid are not likely to be found driving a Prius. Regenerative braking prevents most use of the mechanical brakes on a conservatively driven car. Some people have to actively do some hard stops occasionally to wear off the rust. The major problem that has been reported with Prius brakes is that they rust due to lack of use. ![]() So failure would be the brakes not working when they get too hot. With brake fluid, the degradation seems to be water dilution and a decrease in the boiling point of the fluid. Seems to be a reasonably well established fact that the fluid goes bad and damages things. ![]() One of the reports of transmission failure on a Gen1 was resolved by changing the transmission fluid. I guess I understand that bad transmission fluid damages the electric motor windings. ![]()
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