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Followup To
Question -
the reason i ask you the question ,because you didn t have model and year cadellac deville .1995,4.9 engine
Answer -
I get 30 to 50 questions DAILY. What was your original question. Use the FOLLOWUP selection instead of starting a NEW QUESTION and include ALL the information.MY CARS GAS RANGE IS ABOUT 260 AT A FULL TANK AND IT WAS 430 MPG WHEN FULL , I GOT TUNEUP NEW TIRES AND O2 SENSOR,AIR FILTER AND MY RANGE FELL OFF AND IT NEVER ADDS UP MPG TIMES GALLONS OF GAS
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AnswerMichael,
This display is ONLY an average mpg based on TOTAL fuel mileage calculated from the time you start the vehuicle in your driveway, run around town making frequent stops and starts, and highway mileage.
Do NOT rely on this TOTALLY USELESS piece of information as it is only there for some unknown reason. WHY they EVER put this in the vehicles year after yaer I will never know.
I have been explaining the meaning of these readings since they first put this display in the vehicle.
Calculate your fuel mileage the OLD FASHION way when you take a trip. Such as:
1. Fill the gas tank.
2. Drive 200 HIGHWAY miles.
3. Refill the fuel tank.
Divide the mileage by the amount of fuel gallons that you just put in to refill the tank.
EXAMPLE: You drove 200 miles. After you drove the 200
miles you stopped and refilled the fuel tank and
it took 10 gallons to refill the gas tank to
full.
Therefore dividing the 200 miles by the 10
gallons of gas, You got 20 miles per gallon.
Again this display is ONLY an AVERAGE of all fuel consumed by the engine from the time you start the engine until you turn the engine OFF.
There is NOTHING more that I can tell you about this display. It will NEVER read the same everytime.
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