Quote:
Originally Posted by figit090
What about the brake booster when the engine is off?
Also, does an engine with a manual transmission use any fuel if coasting down a hill with 0 throttle, being pulled by gravity above idle RPM?
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Brake booster will not be supplied with vacuum used to assist with your power brakes when the engine is off. You will have one or two pushes of the brake pedal with vacuum assist from what was in the booster and that is it. After that it will be very hard to push on your brakes but they will still work.
Your question about coasting down a hill (I assume you meant engine on and left in gear) with zero throttle is a method I use a lot. Go back a page and find my post (#18?) that has a link to DFCO. EOC will coast further but DFCO also uses zero fuel while in effect.