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Old 09-18-2009, 12:36 AM   #24 (permalink)
orange4boy
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Join Date: Aug 2008
Location: Vancouver BC
Posts: 1,124

The Golden Egg - '93 Previa DX
90 day: 31.91 mpg (US)

Chewie - '03 Prius
90 day: 57 mpg (US)
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Quote:
Originally Posted by orange4boy
My experience is that eliminating the drag from my rear drums made a very noticeable difference in my coast down. It now coasts for ever............... No quantification though...

Did you already write that up? Can you post a link for us here?
No write up. Sorry. You'll have to take my word for it. The butt o meter definitely noticed. I wish I could test every change I made but I gotta have a life too. Reducing brake drag, disc and drum made a big difference. I don't know whether other cars have the rear drum drag issue but it's worth it to check.

Quote:
I've never had a big problem with drum brakes dragging and have yet to see a disk brake that doesn't drag
That's why I hadn't checked my rear drums until now and why I'm rebuilding my front calipers and lubing the sliders before winter. (and changing the brake fluid) The square O rings don't do much good if the pistons are rusted to the caliper.
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