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Old 07-10-2008, 11:23 AM   #1 (permalink)
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Location: Wisconsin
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SaturnSl1 - '00 Saturn SL1
90 day: 40.21 mpg (US)

MyPickup - '96 Ford Ranger

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Keeping Engine Coolant Hot

I read somewhere a while back that the Prius or Insight uses a special canister that stores the engine coolant after the car shuts down. It keeps the coolant super-insulated so that it stays hot longer, even overnight.

I'm wondering if there's a $5 mod that would make much difference -- installing ducting insulation wrap around the coolant reservoir.

It might not keep the coolant hot overnight, but it would keep it hotter if you leave the car for 2-3 hours.

Question about this is, would that also make the coolant hotter while running?


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