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Originally Posted by Chris D.
can someone define what driving with load means?
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DWL is essentially keeping the vacuum needle stationary, and adjusting your throttle to accomplish this. That means you'd be letting up going up hill and permitting your speed to drop & gradually regaining it on the down grade as you give it more pedal. It's the exact opposite of what your cruise control was doing, which is why you can outperform it.
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yes, I want a sg, but money permitting..
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You spent more on your new tonneau than a used SG would cost. Guess which one I would have recommended as the best way to improve your overall MPG?
Just buggin' ya. The vac gauge will help with your DWL.
Quote:
Originally Posted by LostCause
High vacuum indicates low throttle load which should mean low fuel consumption, but engine's operate at their lowest efficiency under low load...trying for high vacuum seems like rooting for the bad guy.
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That's a mixed up perception that I see often. High vacuum at cruise is definitely the good guy.
There's a difference between
lowest fuel consumption and
best engine efficiency. With a typical engine at light loads, you'll probably get your best MPG well outside of your engine's best efficiency (BSFC) area.