Not sure that I said it did. What I said was that it had an "effective"
block heater, ie hot water pumped through a cold block = "warmer" block.
I stand corrected. Wouldn't make a lot of difference even if it did, given
the US attitude to gas consumption in general.
But does it reduce pollutants?
Not really, we get hot - you get very hot (In some places), we get cold, you
get very cold (in some places). We both get hot enough for AC and cold
enough for a bit of help on a cold morning. The Prius AC is OK but not as
good as some European cars I've driven.
AFAIK, all North American NHW20 Prius (the hatchback version, model
years 2004-current) have the CHSS (coolant heat storage system) as
standard. This is not fitted on the European NHW20 Prius. Can you
tell me which older NHW20s did NOT have the CHSS? Only a small amount
of hot engine coolant is pumped from the coolant resivoir at shutdown,
and stored in the Coolant Heat Storage System (similar to a Thermos(r)
vacuum flask). The CHSS stores the already-warm coolant, to be pumped
back into the rest of the coolant at startup later, to begin warming
existing coolant faster. The CHSS reduces HC emissions, since HC
emissions are higher at a cold startup. (The older NHW11 Prius had a
HC absorbing catalytic converter that would capture these extra HC
emissions at cold startup, but the NHW20 has a more traditional
catalytic converter with the CHSS...)
The engine block heater is a separate, external, added accessory.
Most US dealers do not stock this item, but some dealers in US/Canada
border states do carry this item, and it is a standardly offered
accessory in Canada. It is a little electrical heater which has a
probe that will warm up engine oil and the engine block, which you can
plug into a household electrical wall outlet. Different fluid.
but if you drive one, you still have a small penis!
On Tue, 12 Aug 2008 13:27:22 -0700 (PDT), "email@example.com"