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Old 11-15-2015, 06:26 AM   #42 (permalink)
Redbaron
EcoModding Lurker
 
Join Date: Feb 2009
Location: Finland
Posts: 3

OPEL - '07 Opel Astra GTC
90 day: 37.19 mpg (US)
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Thanked 4 Times in 2 Posts
Plug is for engine block heater. Here in Finland is sometimes cold in winter and block heater heps to start engine. Itīs also reduce fuel consumption on cold weather, because engine reach up faster normal operating temperature.
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