How much gas does turning car on & off take?

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How much gas does turning car on & off take? - 12/27/2007 8:53:32 PM    swab   Posts: 29 Joined: 3/15/2007 Status: offline a buddy of mine left his dodge dakota idling while he went in the store for like 15 mins, i asked him why didnt he turn his car off and he said that it wastes more gas if you do that, is that true? i have a dodge durango, my question is how many minutes can i waste idling before it wastes as much as if i were to turn my car off and walk in a store for a short period... that was kind of hard to explain Post #: 1

RE: How much gas does turning car on & off take? - 12/27/2007 9:14:04 PM    durangeddurango Posts: 207 Joined: 9/9/2007 Status: offline  I think he is right on if his truck was carberated, i don't think he is right being fuel injected. good question. there is alot of room for debate on this subject, i think it may come down to personal prefernce,outside temperatures, etc. i can't answer the timeline when it becomes a waste of gas to being efficient for idling time. (in reply to swab) Post #: 2

RE: How much gas does turning car on & off take? - 12/28/2007 7:24:21 AM    HankL   Posts: 2719 Joined: 8/20/2005 Status: offline Supposedly if you have to idle for more than as little as 20 seconds it is more fuel efficient to turn the engine off, which is similar to how some of the "light" hybrids do like the Silverado pickup and Saturn Vue (in reply to durangeddurango) Post #: 3

RE: How much gas does turning car on & off take? - 12/28/2007 8:34:47 AM    tdmopar59 HD Hemi Man Posts: 5764 Joined: 2/9/2007 From: Warminster, PA Status: offline i wouldnt let it idle for any more than like 2 minutes.... it's just waisting gas... with EFI you don't use much fuel on startup... _____________________________ DON'T FORGET ABOUT THE REGIONAL SECTION!! http://www.dodgeforum.com/forumid_135/tt.htm Thank you to all of those who served: All gave some, Some gave all. (in reply to swab) Post #: 4

RE: How much gas does turning car on & off take? - 12/28/2007 12:03:30 PM    swab   Posts: 29 Joined: 3/15/2007 Status: offline well i have fuel injectors so anything less then 2 minutes i should turn it off?? (in reply to tdmopar59) Post #: 5

RE: How much gas does turning car on & off take? - 12/28/2007 1:19:04 PM    Kensai Posts: 1669 Joined: 12/30/2003 From: United States Status: offline I would just recommend not to let the Durango idle for any reasonable length of time if you are not troubleshooting or letting the engine warmup to save gas.  Also, cut down on emissions. Example, if I am at a drive thru, I only idle if the line is moving quick, if not, I just start/stop the engine.  The only bad thing about this is wearing out the starter faster if I have to use it frequently. _____________________________ Black 2000 Durango 5.9 R/T Fastman 52mm ThrottleBody Fastman custom built Tranny Castrol Full Syntec OEM K&N Air filter Monroe Reflexes BFG Comp T/A''s Champion IR Truck Plugs 180 Stat Hypertech III (87 oct) Custom Made Ram Air Intake (in reply to swab) Post #: 6

RE: How much gas does turning car on & off take? - 12/28/2007 9:55:13 PM    swab   Posts: 29 Joined: 3/15/2007 Status: offline ok cool. since were talkin about saving gas how much gas is really used when you turn your A/C on, a friend of mine said that keeping your a/c on doesnt waste any gas at all, but then i have another friend saying it only wastes gas when its on high and if its low it doesnt, i dont beleave them cuz they dont no nothin, but i still make my self suffer not putting the a/c on just to try to save some gas... i live in florida it is 85 degrees right now so imagine summer time (in reply to Kensai) Post #: 7

RE: How much gas does turning car on & off take? - 12/29/2007 5:35:34 AM    HankL   Posts: 2719 Joined: 8/20/2005 Status: offline http://www.edmunds.com/advice/fueleconomy/articles/106842/article.html has a section where they test out the effect of Air Conditioning also one on use of cruise control (in reply to swab) Post #: 8

RE: How much gas does turning car on & off take? - 1/9/2008 6:50:04 AM    Duranged408 Posts: 267 Joined: 1/6/2008 Status: offline My "opinion" on the mpg issues is if your worried about gas consumption on start up, as well prices of fuel you def have the wrong vehicle   (in reply to HankL) Post #: 9

RE: How much gas does turning car on & off take? - 1/17/2008 8:03:01 AM    n8ech   Posts: 530 Joined: 11/21/2006 Status: offline SWAB: If you search far and wide, you will get answers on both sides of the fence.  Today's fuel injected motors are more efficient all around, and do not (should not) suffer from the warming up issues that their carburated counterparts of past decades did. As a benchmark, the 4.6L V8 in the Crown Victoria (police version) consumes around .5 gallon an hour at idle. This number can vary a little depending on how much electrical load is on the alternator, etc. For me, I tend to shut off my D if it will sit longer than a couple of minutes unless it is really hot or cold out. Our family budget spent $4k on gas between my D and the wifes GCV in 2007. In the big picture that is probably not too bad, but it sure looks like a big number when you think about just filling your car up.                                                                     Don _____________________________ 2001 Dark Garnet Pearl Durango SLT+ 4.7L AWD w/ 3.55 gears (mine) 2005 Linen Gold Pearl DGC 3.8L (hers) (in reply to Duranged408) Post #: 10

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