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Old 12-02-2009, 02:56 PM   #87 (permalink)
bwilson4web
Engineering first
 
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Join Date: Mar 2009
Location: Huntsville, AL
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17 i3-REx - '14 BMW i3-REx
Last 3: 45.67 mpg (US)

Blue Bob's - '19 Tesla Std Rng Plus
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Hi,

Quote:
Originally Posted by Daox View Post
In what cases do you use neutral coasting Bob?
During the first 5 minutes or until the engine coolant reaches 70C and I can get it into Stage-4. For example, I cut through the neighborhood, relatively flat with 25 mph, 40 km/h, speed limits and I'll slip into "N" so the ICE will turn slower. Especially at stop lights where I'll shift into "N" to reduce the fuel burn while waiting for the light. My informal testing suggests stopping and starting the engine manually is more fuel expensive so I just idle in "N". If stopped and in "D", the engine will burn fuel a little faster than "N":


Once I'm in Stage-4, I pretty much just drive the car. Traffic permitting and I can safely use "N", I'll do it but I'm not really obsessive about using "N" to extend rolling. I used to drive a manual and was happy to push in the clutch when I wanted to roll w/o having to hold the accelerator.

Bob Wilson
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2019 Tesla Model 3 Std. Range Plus - 215 mi EV
2017 BMW i3-REx - 106 mi EV, 88 mi mid-grade
Retired engineer, Huntsville, AL

Last edited by bwilson4web; 12-02-2009 at 06:25 PM..
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