Quote:
Originally Posted by johnlvs2run
I'm not sure about the differences in fuel, as I think they're not shown on the pumps, but that wouldn't explain the different speeds for dfco coasting down the hill, which felt like a major difference. The previous trip the car was going full blast, and the last time hardly moving along.
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Did you mean EOC down the hill? Because if you dfco down the hill that would introduce a whole set of driveline variables like transmission or engine criterias that can be totally diffrent for the runs.
About the brakes: Calipers can stick at the slides and the piston(s) can stick too.
Brake hose is not really a flexibility question but rather it will swell on the inside with age and what happens is when you apply the brakes the high hydraulic pressure will open up the way for the fluid to go toward the caliper but there is no real force for the fluid to return when you release the brakes so the swollen shut brake hose will keep the brakes applied.
Then in a really bad case it heats up more,fluid expands thus applying more brakes until lockup can occur.