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Idleless cars

  1. #1
    totse2118 Space Nigga [my ci light-haired pongee]
    If cars just shut down instead of idle the planet would last a lot longer.

    There is no need to be in such a rush
  2. #2
    aldra JIDF Controlled Opposition
    pretty sure it takes more petrol to start an engine after it's been stopped than it does to idle for 30 seconds waiting for a light
  3. #3
    blaster master victim of incest
  4. #4
    Star Trek VI: The Undiscovered Country Dark Matter [my scoffingly uncritical tinning]
    The new Volkswagens/Skodas/SEATs have a cut-off at idle mode you can elect to use. It does save diesel, especially in the summer in city driving, but it's going to wear out your starter motor, and the labour to replace those things is substantial.

    If you are stopped for a while it is usually recommended you turn off the engine to save fuel anyway.

    But just buy a hybrid if you're that interested in saving the planet. They generally use their own generator to start the engine, so don't wear out with continuous stop-start cycles.
  5. #5
    Ghost Black Hole
    Wouldn't that destroy the engine and spark plugs
  6. #6
    blaster master victim of incest
  7. #7
    totse2118 Space Nigga [my ci light-haired pongee]
    Originally posted by Ghost Wouldn't that destroy the engine and spark plugs

    Maybe on an older vehicle but they should be designed to save fuel
  8. #8
    snab_snib African Astronaut
    Originally posted by totse2118 If cars just shut down instead of idle the planet would last a lot longer.

    There is no need to be in such a rush

    it's called 'idle-stop-n-go' and it's a thing on lots of new cars.
  9. #9
    Erekshun Naturally Camouflaged
    We can't kill the planet so there is that. Yes I know, we can kill all life on the planet but earth will be just fine. Chernobyl.
  10. #10
    POLECAT POLECAT is a motherfucking ferret [my presentably immunised ammonification]
    Originally posted by totse2118 If cars just shut down instead of idle the planet would last a lot longer.

    There is no need to be in such a rush

    if rockets, airplanes and space travel were banned we wouldnt have a pollution problem
  11. #11
    Erekshun Naturally Camouflaged
    The corona virus caused reduced pollution in China. Which way should we go?
  12. #12
    -SpectraL coward [the spuriously bluish-lilac bushman]
    All 2019+ Ford F150's have an engine cut on idle mode by default. It's called a Start/Stop system.

    https://en.wikipedia.org/wiki/Start-stop_system
  13. #13
    snab_snib African Astronaut
    Originally posted by Erekshun We can't kill the planet so there is that. Yes I know, we can kill all life on the planet but earth will be just fine. Chernobyl.

    we can't kill all life on the planet. we don't even have the means to make humans go extinct.
  14. #14
    -SpectraL coward [the spuriously bluish-lilac bushman]
    Originally posted by vice admiral slippery slapper 3.5- in a car the battery has died and theyre out in the boonies where the driver fortunately found someone who would jump-start their vehicle…then need to let the engine run for a sufficient period of time to charge the battery…then while theyre driving with the low battery and stop…and the engine shuts off…and there isnt enough charge to feed that starter…and…***price-is-right-buzzer***

    But you can save up to 12% on gas. That's quite a bit of cash over the year.
  15. #15
    snab_snib African Astronaut
    believe it or not the engineers thought of these things.
  16. #16
    -SpectraL coward [the spuriously bluish-lilac bushman]
    Many people think that long-term use may induce additional wear due to lack of oil lubrication. For the crankshaft bearing half shells and the big end bearings this can translate into frequent high-speed rotary movement before a hydrodynamic film is established. During this phase of boundary lubrication, metal-to-metal contact can occur between the crankshaft surface and the bearing's sliding surface. This was not an issue while the number of engine restarts totaled what was generally understood to be a normal magnitude. However, in a vehicle with a start-stop system this effect can necessitate new technological solutions to avoid premature bearing wear, depending on the driving cycle. Consequently, future engines for start-stop applications need to be designed for 250,000 to 300,000 starts. Traditional bearing shells with aluminum or copper lining show severe wear after only 100,000 cycles.

    Some implementations don't use a starter motor[citation needed], eliminating concerns of starter motor wear. The Mazda i-stop used in the Mazda3/Axela line (in Europe and JDM) uses combustion to assist the starter motor by sensing the position of the piston in the cylinder. They claim quieter and quicker engine restart within 0.35 seconds.[44]

    Start-stop systems are heavily reliant on the battery. Testing indicates that AGM batteries diminish in their ability to support start-stop functionality over time.[45] While alternatives exist (NiZn, Lithium-Ion, supercapacitors,[46] PbC), virtually all automakers continue to use conventional AGM lead acid batteries.

    Some car makers such as Suzuki have one lithium-ion battery inside the car.[37]
  17. #17
    snab_snib African Astronaut
    you wouldn't have information about the whole logic of the system unless you worked on them 10 hours a day and sometimes got a chance to talk to field engineers and manufacturer class leads at their regional buildings. everything is on a need to know basis. even tech support can't answer questions like 'what is the nominal resistance across this shift lock release solenoid'.
  18. #18
    snab_snib African Astronaut
    i'm a professional.
  19. #19
    snab_snib African Astronaut
    Originally posted by section 8 housing hero you should look up what a 'service manual' is. one of those things the manufacturer ships out to all the dealerships and factory authorized service centers so that their mechanics can…you know…fix the shit when it gets broked. they intentionally dont keep that shit sekrits so that the shit can get repaired.

    moron. one of the most basic datapoints on virtually all components in the electrical system is the precise resistance to determine functionality or failure…theyre not going to keep it G14 classified.

    lmao, i wish you were right about all that though. that'd be awesome. if 'service manuals' (don't exist. it's a website now.) were half as useful as you thought they were, my job would be twice as easy.
  20. #20
    snab_snib African Astronaut
    but, i do this for a living and have for a long time. it's just not like you actually think it is. what i gave you as an example actually happened today. there is nothing in tech info or the ETM's about what resistance you should read across a good shift lock release solenoid. i called the national tech support center and they also did not have that information. most likely nobody except the manufacturer of that component and the engineering department has that information. and unless a campaign or TSB is issued regarding that part, and that campaign or TSB instructs the technician to test the component before replacing (a generous .3 to rip apart the center console and use your dvom on a connector, a whopping .5 if it needs to be replaced), that information will simply not get out. if someone tests a known good and posts it on the internet, it won't be commonly known. the manufacturer will not make a statement regarding it. not even an aftermarket group will, after they test a known good for making their cheap replacement to sell to NAPA and o'reillies.

    you are basing your theories on pure speculation about how you think things 'should' be. what i'm telling you is how it is in the real world.
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