how to rev in an automatic car

[SanJesse]

You can rev the engine in an automatic car by shifting into Neutral (N) and then pressing the accelerator pedal. This is the safest and most common method. Alternatively, many modern automatics offer a manual mode (often labeled + and -) or a "sport" mode that allows you to hold a gear at higher RPMs without upshifting. A third, but not recommended, method involves pressing both the brake and accelerator simultaneously (often called "brake torquing"), which can generate high engine loads and heat, potentially damaging the transmission.

The engine's revolutions per minute (RPM) indicate how fast it is spinning. Revving in neutral disengages the engine from the transmission, so the power isn't sent to the wheels. This is different from a manual transmission, where the clutch pedal disengages the engine. While an occasional, gentle rev is harmless, sustained high-RPM revving, especially when the engine is cold, can cause unnecessary wear on internal components.

Common Scenario	Recommended Method	Key Consideration	Potential Risk
Checking engine sound	Neutral Gear	Ensure the parking brake is firmly engaged.	Low, if brief.
Performance launch	Brake Torquing	Generates load for a quicker start.	High risk of transmission overheating.
Engine maintenance	Neutral Rev (Brief)	Helps diagnose idle issues.	Avoid prolonged high RPM.
Driving on a track	Manual/Sport Mode	Allows control over gear selection.	Minimal if operating within limits.
Warming up engine	Idle in Park	Modern engines warm up faster under light load while driving.	High fuel waste, increased emissions.

The primary reason to rev an automatic is to listen for unusual noises that might indicate a problem, like a misfire or an exhaust leak. Beyond diagnostics, it's generally unnecessary and puts stress on the engine and exhaust system. Always allow your engine to run for at least 30-60 seconds to circulate oil before revving above idle speed.

[SanGideon]

Put the car in Neutral. That’s the big one. The gearshift should be on "N." Then, just press the gas pedal like you normally would. The car will rev but won't move because it's not in gear. Make sure you’re on flat ground and the parking brake is on, just to be extra safe. That’s really all there is to it for a quick rev. Don’t hold it for too long; a quick blip is fine.

[AndrewFitz]

I’d advise against revving your automatic car excessively. It’s hard on the engine when it’s not under load, and it doesn’t do anything useful for the car. If you need to check something, a very short press in neutral is acceptable. But the "brake-standing" thing you see in movies? That creates immense heat in the transmission fluid and can lead to a very expensive repair bill. It’s just not worth the risk for a bit of noise.

[LuciaLynn]

My dad, who’s a mechanic, showed me this. With the car completely stopped, foot firmly on the brake, you can nudge the shifter over to the manual shifting gate. Then, you can use the paddle shifters or the stick itself to select first gear. Now, when you press the gas, the car will rev but the transmission will hold the gear instead of shifting up. It lets you hear the engine note build without the car lunging forward. It feels a bit more controlled than just using neutral.

[ColtonFitz]

It’s all about the transmission modes. In a regular automatic, "Park" or "Neutral" are your only real options. But if your car has a sport or manual mode, that’s the way to go for a more engaged experience. You’re essentially telling the transmission’s computer to ignore its normal shift points. This is useful for engine braking on a downhill or for setting up a pass on the highway, not just for making noise. It gives you a taste of manual control without a clutch pedal.