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datsundude91 · 05-18-2010, 01:01 AM

I am trying to decide between getting a Vacuum Gauge or a Tachometer as my car has neither. I have a 1981 Honda Civic Wagon so a Scan Gauge II is out of the question.

Which would give me better feedback for the purpose of improving FE?
Which would have the most impact?

05-18-2010, 01:01 AM	#1 (permalink)
datsundude91 EcoModding Lurker Join Date: Apr 2010 Location: Far Northern California Posts: 13 Outback Sport - '08 Subaru Impreza Outback Sport 90 day: 25.84 mpg (US) Thanks: 0 Thanked 0 Times in 0 Posts	Tachometer or Vacuum Gauge? I am trying to decide between getting a Vacuum Gauge or a Tachometer as my car has neither. I have a 1981 Honda Civic Wagon so a Scan Gauge II is out of the question. Which would give me better feedback for the purpose of improving FE? Which would have the most impact?