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Old 11-22-2011, 12:21 PM   #15 (permalink)
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Join Date: Oct 2011
Location: Sacramento, CA
Posts: 152

F8L's 2012 Prius - '12 Toyota Prius Three with Solar Roof
90 day: 62.14 mpg (US)
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Originally Posted by jamesqf View Post
Not to mention that if you warm up the engine quickly, you'll be getting cabin heat for free.

One of the several reasons that I don't really like the Prius design is the fact that it has a pure EV mode at all. As others have said, it's not really efficient to drive in EV mode, then recharge the battery from the motor. With the Insight + MIMA, virtually all my battery charging comes from braking or going down hills, so it's "free" energy that'd otherwise be wasted as braking heat.

The Prius used regenerative braking as well but it doesn't supply as much energy as the engine does. The Civic IMA system doesn't either. On my commute I have a 1,200ft. elevation change so my battery charges to full if I choose to let it regen. Normally I just glide for the long downhill section as this is more efficient.

I wish Honda would have set up a better system for keeping the battery cells leveled off. As it sits we have a ton of Civic owners with useless or barely useful batteries because of this. There is a device being built which can fix the situation and it's only about $500. I hope it comes out soon so the Civic guys can regain their lost MPG.
2012 Prius Three with Solar Roof - Blizzard Pearl w/dark gray interior: Prius Plug-In 15" Wheels | Michelin Energy Saver A/S 195/65/15 tires | TRD Lowering Springs | WeatherTech FloorLiners | Scangauge II | Morimoto/DDM HIDs 5000K | Clazzio Leather Seat Covers | Best Tank: 71.7mpg@702miles | Best Trip: 95.9mpg@233miles
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