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Old 08-31-2024, 07:32 AM   #12 (permalink)
Piwoslaw
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Location: Warsaw, Poland
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Svietlana II - '13 Peugeot 308SW e-HDI 6sp
90 day: 58.1 mpg (US)
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Great testing, Ankleface

Wondering whether your route has lots of opportunity for coasting? If yes, then you might benefit from engine-off-coasting with an engine kill switch.

If instead it has lots of ups and downs, and/or accelerationing/braking, then:
  • Accelerate at ~80% load,
  • Start engine-braking in a high gear as long as possible,
  • Turn off the A/C when coasting or idling, but use it when engine-braking (free energy!).

If these are short trips, then maybe you can risk an alternator delete? Depending on the type of alternator your car has, it might be as difficult taking off the accessory belt, or as easy as putting an ON-OFF switch on the alternator's field wire. In the latter case you could turn it on (charge the battery) only when engine-braking, or when the battery's charge drops too low.

Quote:
Originally Posted by Ankleface View Post
Not a bad idea. I actually walk a lot for most errands, I just mainly use the car when I have to transport unwieldy or heavy stuff.


How my home-built bicycle trailer lowers my MPG
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[Old] Piwoslaw's Peugeot 307sw modding thread
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Ankleface (08-31-2024)