Remote starters, how do they work?!?? [split]

[Vovchandr]

@KrazyKid

do you have any idea how much gas is “wasted” sitting there?

ave duty cycle at idle is like 1-3%

Stock injectors in your truck are 21lb or 220.5cc/min * 8 (8 injectors) 1764cc/min

there are 3785CC per GAL

so my dumb math is telling me it would take 2.14 minutes to flow a gallon of gas through 8 injectors WIDE OPEN.

Assuming a 3% DC, I take 1764 * .03 and get 52.92CC/min at idle.

or it would take 71 minutes of idle to burn one gallon of fuel.

71 minutes costs $3.50, or 5 cents a minute

So letting it sit for 5 minutes to idle up to temp to toast your buns costs you all of $0.25 :lol

(there is way more number crunching to find the actual flow, but that’s gotta be in the ballpark i would think)

Math has to be off.

At highway speeds at around 60 miles an hour you will go let’s say 30 miles in 30 minutes.

At 30mpg, that would be a gallon in 30 mins at cruising rpm of let’s say 2000, and 30% throttle.

So in 15 minutes you would burn half a gallon of gas at 30%, or ~$2.

Divide that by ten to get 3% idle and you get 20 cents for every 15 mins if not more.

All I know is on average I let my car run for about 5 mins on remote start and my mpg for the week drops from 24 to 20, or around 100 miles less per tank, or $15 a week in other terms.

$60 a month for remote start operation of 5 minutes.

My 2 cents.

Edit: my math isn’t any better. I got only about 1.25 cents a minute so even cheaper by my math then your 5c a minute.