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Old 12-14-2012, 10:53 PM   #494 (permalink)
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elhigh's Avatar
Join Date: Jan 2008
Location: SE USA - East Tennessee
Posts: 2,312

Josie - '87 Toyota Pickup
90 day: 40.02 mpg (US)

Felicia - '09 Toyota Prius Base
90 day: 52.92 mpg (US)
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HCCI is promising, but...

I don't like how much control tech it requires. Half the stuff going on under the hood of my newest car barely makes sense to me now, HCCI seems to be most effective when it's got variable valve timing, variable compression ratio , knock sensors (of course), variable intake temp and variable EGR.

I mean, is there anything left that isn't under constant adjustment? And none of it is the kind of thing I could fix with just a pair of pliers and a screwdriver by the side of the road if it all goes pear-shaped.

My truck isn't advanced by any means, and I like it that way. I understand it.

Lead or follow. Either is fine.
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