leave the engine idling vs leave the engine idle

Both phrases are correct, but they are used in different contexts. 'Leave the engine idling' refers to keeping the engine running, while 'leave the engine idle' means to leave the engine in a state of not running. The choice between the two depends on whether you want the engine to continue running or not.

Last updated: March 15, 2024 • 710 views

This phrase is correct and commonly used in English.

"leave the engine idling "

This phrase is used when you want to instruct someone to keep the engine running without turning it off.

Examples:

Please leave the engine idling while I run into the store.
It's not good for the engine to constantly start and stop, so it's better to leave the engine idling.
The mechanic asked me to leave the engine idling so he could listen for any unusual noises.
You can't leave the engine idling for too long, it wastes fuel.
The driver was instructed to leave the engine idling to keep the air conditioning running.

Show examples from the web [+]

Idle Reduction Campaign. There are 25 million reasons why it's important to reduce school bus idling. The key to reducing idling is you! Clean School Bus's National Idle Reduction Campaign helps your community take action toward a cleaner ...
Myth: It is better to just leave the engine idling because a “cold start” produces more pollution. Fact: A recent EPA study found that the emission pulse measured after the school bus is restarted contain less carbon monoxide, nitrogen oxides ...
Mar 23, 2015 ... ... have many facilities out here and have to travel a bit for some things but one thing we have got is freedom as motorists, parking is plentiful and free, no congestion charges here and can leave the engine idling all you like. 1.
In Alaska it's fairly typical to leave the engine idling to warm it up in the winter, but if you do that you need to get the engine up to speed long enough to get the oil above the boiling point of water. You need to get the ...

Alternatives:

Keep the engine running
Let the engine stay on
Don't turn off the engine
Keep the motor running
Leave the motor running

This phrase is correct and commonly used in English.

"leave the engine idle"

This phrase is used when you want to instruct someone to turn off the engine and leave it in a state of not running.

Examples:

After parking the car, remember to leave the engine idle before turning it off completely.
It's important to leave the engine idle for a few minutes after a long drive to let it cool down.
The manual says to leave the engine idle for a minute before shutting it off.
Don't forget to leave the engine idle for a bit before shutting it down.
The mechanic advised me to leave the engine idle for a while to prevent overheating.

Show examples from the web [+]

Don't leave the engine idle while making a phone call, hopping into a store, or dropping off the dry cleaning. Sure, that might keep the interior warm in winter or cool in summer, but the gasoline is just burning away, accomplishing no useful ...
Mar 23, 1989 ... Place the shift lever in park, and leave the engine idle. Again, the fluid level is best if it is kept near the ''full'' mark. Never let the fluid fall below the ''add'' or 1- quart-low mark. Use a clean lint-free cloth to wipe both oil and ...
latter approach, what would be the criteria for selecting the areas or hours of exemption? Should a Grace Period be Set for Idling Vehicles? 5.5 It is sometimes suggested that an allowance should be given to drivers to leave the engine idle for ...
Apr 17, 2009 ... There isn't really any tweeking that is needed. The most you have to do after install is start the bike and leave the engine idle for 15 minutes. That is what was recommended for the Hindle exhaust, so I did the same thing for ...

Alternatives:

Turn off the engine
Shut down the engine
Stop the engine
Switch off the engine
Cut the engine

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leave the engine idling vs leave the engine idle