

| Subject: | Re: when is stopping/restarting better than idling? |
| From: | Steven Johnson |
| Date: | Sun, 17 Jun 2012 07:28:23 -0700 |
That's why I believe oil smile with every time a new stop light gets put up..... On Jun 16, 2012 10:51 PM, "Scott Daniel - Turbovans" < scottdaniel@turbovans.com> wrote: > I would ask what is meant by 'better' ? > > in terms of fuel savings ? > or in terms of less wear on the engine ? > or ? ...........how about less impact on other people and the environment ? > > I am generally very very possessed to idling engines .( I have big > diesel trucks that idle, sometimes for over half an hour ...about 120 > feet from my desk, with nothing between me and that truck but an open > door and a chain link fence. - grrrr. ) > > It's surprising how much people do not shut off their damn engines > sometimes ! > Total waste of fuel - you know , they're on the phone, they pull into a > parking spot - some people will sit yakking with the engine running for > 25 minutes. > > Sometimes I do think it is better to keep coolant circulating, rather > than shut off, if it's going to be a short interruption in driving. . > If things are hot....when the coolant stops circulating, it just gets > hotter in the engine for a while. I don't think that in itself does > much harm though usually. > But mostly ..if the wheels are not turning , and it's going to be more > than a minute or two , shut the thing off ! > > Wear on the starter - good Bosch starters last nearly indefinitely > ....thousands of start cycles in them, I wouldn't worry about that > factor too much with a healthy starter. > > mainly to me, it's just burning fuel, and adding pollution to the air. > Unless there's a good reason, or it's waiting for a traffic light to > change say ...any idling engine is a bad thing I think. > > near as I can tell, most people really do not care at all about how much > fuel they burn, or how much of that stuff they put into the air. Or the > noise. Or how their idling or noisy engine affects others nearby - > mostly no awareness much at all, looks like to me. > We are on the tail end of the age of petroleum-burning for > transportation ..or nearing the end of that age. > > I challenge anyone to come up with a number that approximates the total > number of running engines on the planet every minute.. > I think it could be 5 million engines ( cars, airplanes, trucks, trains, > ships , generators, tractors - on and on ) running at any given > moment. Or more even. I've never seen that figure estimated anywhere. > I should google it. > > On 6/16/2012 4:24 PM, pickle vanagon wrote: > >> I guess I'm looking just for the range of educated opinions of the >> listmembers. >> >> In a well-maintained Vanagon, how long does a stop have to be for it to be >> better to stop the engine and later restart it, versus idling? >> >> 10 seconds, 1 minute, 5 minutes, etc? >> >> I'm wondering about the theory of it, not the practical aspects as relate >> to the needs of actually driving around other vehicles... >> >> -Wes >> >>
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