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High Temp Thermostat

Car Profile

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  • Objective:
    • Maximum fuel efficiency
  • Fits:
    • all AHU/1Z TDI's
    • ALH
    • All older IDI's
  • Part Numbers:
  • In use/Tested By:
  • Alternative:
    • stock 87° Thermostat
  • Comments:
    • Low operating temperature is known to hurt MPG, but there is no solid proof that higher temperatures will improve efficiency.

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