mobil onay izmir escort antalya escort izmir escort porno porno izle bursa escort escort porno havalandirma sistemleri izmir escort bursa escort izmir escort izmir escort istanbul escort
Is there any reason one repair can cause other things to change? - Page 3
500 Madness
   
 

Fast Free Shipping on All Orders Over $50

 
Page 3 of 3 FirstFirst 1 2 3
Results 21 to 23 of 23

Thread: Is there any reason one repair can cause other things to change?

  1. #21
    Moderator map's Avatar
    Join Date
    Dec 2018
    Location
    Eugene
    Posts
    1,047
    Thanks
    276
    Thanked 221 Times in 200 Posts
    I noted the same on my Fiat. The digital speedo/odo is peg on, with stock tires... exactly what the computer reads and those computer signs. My former had an analog tach and speedo, controlled by the computer, but neither agreed w/ the computer's readout.

    The SG did help me locate a crooked station owner. His prices are high because of his convenient location, but his pumps also shortchanged. Puzzled at lower MPG *always* at that station, I marked a can @ 2 gallons and filled, to test. After that, I went elsewhere and saved 40 cents per gallon.

    You are correct, smark, but tire size matters if you are playing the game. Travel 105 miles and the Neon's odo registered 100 (winter tires). That's the difference of 42 vs 40 MPG. It was a game to entertain, but saved maybe $2000. Range gauges are simply a guess, "I squirt so much fuel into the engine and expect I'll go so far." Not all fuels have the same energy and, I suspect, mfgrs want people to feel good... getting that extra couple MPGs. Fiat is more accurate than most.

    https://www.edmunds.com/fuel-economy...s-fibbing.html
    Last edited by map; 03-28-2020 at 01:22 PM.

  2. The Following User Says Thank You to map For This Useful Post:

    HalfPint (03-28-2020)

  3. #22
    Senior Member HalfPint's Avatar
    Join Date
    Nov 2019
    Location
    PA
    Posts
    230
    Thanks
    58
    Thanked 103 Times in 81 Posts
    Quote Originally Posted by map View Post
    I noted the same on my Fiat. The digital speedo/odo is peg on, with stock tires... exactly what the computer reads and those computer signs. My former had an analog tach and speedo, controlled by the computer, but neither agreed w/ the computer's readout.

    The SG did help me locate a crooked station owner. His prices are high because of his convenient location, but his pumps also shortchanged. Puzzled at lower MPG *always* at that station, I marked a can @ 2 gallons and filled, to test. After that, I went elsewhere and saved 40 cents per gallon.

    You are correct, smark, but tire size matters if you are playing the game. Travel 105 miles and the Neon's odo registered 100 (winter tires). That's the difference of 42 vs 40 MPG. It was a game to entertain, but saved maybe $2000. Range gauges are simply a guess, "I squirt so much fuel into the engine and expect I'll go so far." Not all fuels have the same energy and, I suspect, mfgrs want people to feel good... getting that extra couple MPGs. Fiat is more accurate than most.

    https://www.edmunds.com/fuel-economy...s-fibbing.html
    Interesting article containing quotes like this one from GM. His first two paragraphs are pretty good but his last one is a complete lie:
    "Roger Clark, senior manager of GM's energy center, explains that the fuel economy gauge makes a calculation by counting the number and duration of pulses made by the fuel injectors as they squirt gasoline into the combustion chambers of the engine. The onboard computer system divides the distance the car travels by this estimated fuel consumption.

    Clark says the gauge is "dead nuts accurate" — if you consider all the variables at work during driving, including temperature, driving conditions and driving style. The biggest fluctuation occurs because ethanol, which is blended with gasoline in varying amounts, contains less energy.

    "When you fill up, you are paying for a gallon of gas, but the energy in that gas varies significantly," Clark says. This means that while the car's computer assumes the gasoline is providing energy to drive a certain distance, the fuel might have less energy and not propel the car as far."

    It doesn't use the estimated fuel consumption, rather the measured volume based on pressure, time and injector flow rate.

    You do not pay for energy content at the pump, you buy a volume of fuel, whatever it is. MPG is simply a measure of how many miles you went and how much fuel you used, the energy content of the fuel has nothing to do with it. If your fuel has more ethanol you won't go as far, but the accuracy of the volume used calculation does not change at all. The flow rate of the injectors is simply volume per unit time, it could be water for all that matters.

    It amazes me that Edmunds would publish that quote without ripping it to pieces.
    Completely stock 2016 500 Abarth, Rhino & Nero
    "Speak if you can improve upon the silence"

  4. #23
    Moderator map's Avatar
    Join Date
    Dec 2018
    Location
    Eugene
    Posts
    1,047
    Thanks
    276
    Thanked 221 Times in 200 Posts
    Agreed. I think the meters on those cars were over-optimistic... and why Ford didn't respond. They didn't want to say, "Our customers are dolts and will believe whatever their dash tells them."

    Fuel does vary in energy content, based on mix and even the crude used to produce it. It's one reason winter fuels get different MPG than summer blends. But, as you said, the computer adjusts and keeps the fuel delivery in balance. If more energy is produced per pulse, you back off on the throttle, and it shows as higher MPG... but the computer "counts" the fuel used.

Page 3 of 3 FirstFirst 1 2 3

Similar Threads

  1. One more reason it sucks to get old.
    By DowneasTTer in forum Off Topic
    Replies: 9
    Last Post: 06-23-2017, 04:27 PM
  2. Little things I wish I could change about my 500
    By SVAGO 1 in forum Fiat 500 General Discussion
    Replies: 26
    Last Post: 03-29-2017, 06:51 AM
  3. So what was your Reason to buy a 500?
    By Berliner in forum Fiat 500 General Discussion
    Replies: 26
    Last Post: 03-18-2013, 10:20 AM
  4. Some things never change
    By MrFiat in forum Fiat 500 ABARTH Images
    Replies: 13
    Last Post: 01-25-2013, 09:53 AM
  5. What's your reason for getting the Abarth?
    By cascorpio in forum Fiat 500 ABARTH General Discussion
    Replies: 48
    Last Post: 07-20-2012, 04:05 PM

Posting Permissions

  • You may not post new threads
  • You may not post replies
  • You may not post attachments
  • You may not edit your posts
  •