1. Attachments are working again! Check out this thread for more details and to report any other bugs.

Mpg and Tank Capacity Measurement

Discussion in 'Gen 2 Prius Main Forum' started by fragglestickcar, Jan 16, 2020.

  1. fragglestickcar

    Joined:
    Apr 4, 2018
    69
    40
    0
    Location:
    New York
    Vehicle:
    2006 Prius
    Model:
    II
    Disclaimer: I am not liable for injury, death, or damage from the following. Please suggest safer, better ways of measurement.

    Measuring MPG. Fill up. Drive Y miles where Y > 200. Fill up, and record number of gallons filled X. Divide Y by X. Ideally do all this on a single road trip to avoid temperature effects.

    Measuring tank capacity. Keep a full 1-gallon gas can in the car. Drive until red triangle indicates you've run out of fuel. Drive another quarter-mile until you're on fumes (this damages the car, yes). Pull over and fill up with your 1-gallon gas can. Go to gas station and fill up, and record number of gallons X. Tank capacity is X + 1.
     
  2. dolj

    dolj Senior Member

    Joined:
    May 14, 2012
    7,655
    3,867
    0
    Location:
    Wellington, New Zealand
    Vehicle:
    2007 Prius
    Model:
    N/A
    You need to add at least 3 gallons for the car to register that fuel has been added, so you need a spare gas can of 3 gals or more.
     
    nssdiver, srellim234 and SFO like this.