Warming up a 4.9/ turn off in trafgic
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HT4100 4.1, 4.5, 4.9 Discussion, Warming up a 4.9/ turn off in trafgic in Cadillac Engine Technical Discussion; In the morning in Washington i leave around 4 am so kinda cold, Do I need to let this warm ...
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    Ninjobitch's Avatar
    Ninjobitch is offline Cadillac Owners Member
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    In the morning in Washington i leave around 4 am so kinda cold, Do I need to let this warm up at all or should i let it idle for 10 or 20 secs to let the oil circulate before I take off or just take off?

    Second question how long should I wait before turning the engine off in traffic jam lets say I'm setting there for over one minute to five minutes before moving 20 feet and stopping again?

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    MoistCabbage's Avatar
    MoistCabbage is online now Cadillac Owners 10000+ Posts
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    Letting an engine warm up is not recommended. You want the drivetrain to reach normal operating temperature as soon as possible, which is done by driving normally. In FREEZING weather, wait 30 seconds or so before driving.

    You can let the engine idle as long as you'd like. If you know you're going to be completely stopped for several minutes, you can turn it off to save a little gas. Otherwise, you're just putting unnecessary strain on the starter.

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    Ninjobitch's Avatar
    Ninjobitch is offline Cadillac Owners Member
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    Quote Originally Posted by MoistCabbage
    Letting an engine warm up is not recommended. You want the drivetrain to reach normal operating temperature as soon as possible, which is done by driving normally. In FREEZING weather, wait 30 seconds or so before driving.

    You can let the engine idle as long as you'd like. If you know you're going to be completely stopped for several minutes, you can turn it off to save a little gas. Otherwise, you're just putting unnecessary strain on the starter.
    Awesome thanks I really appreciate all the knowledge

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    MoistCabbage's Avatar
    MoistCabbage is online now Cadillac Owners 10000+ Posts
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    No problem.

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    Re: Warming up a 4.9/ turn off in trafgic

    Quote Originally Posted by MoistCabbage View Post
    Letting an engine warm up is not recommended. You want the drivetrain to reach normal operating temperature as soon as possible, which is done by driving normally. In FREEZING weather, wait 30 seconds or so before driving.

    You can let the engine idle as long as you'd like. If you know you're going to be completely stopped for several minutes, you can turn it off to save a little gas. Otherwise, you're just putting unnecessary strain on the starter.
    Fun little statistic to add... in the fleet world, it's generally accepted that on a gas engine, each idle hour is equal to 33 miles!

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    HUF's Avatar
    HUF
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    Re: Warming up a 4.9/ turn off in trafgic

    Quote Originally Posted by MoistCabbage View Post
    Letting an engine warm up is not recommended. You want the drivetrain to reach normal operating temperature as soon as possible, which is done by driving normally. In FREEZING weather, wait 30 seconds or so before driving.

    You can let the engine idle as long as you'd like. If you know you're going to be completely stopped for several minutes, you can turn it off to save a little gas. Otherwise, you're just putting unnecessary strain on the starter.
    +1. Just make sure your fans turn on and off while in a traffic jam.

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