Is Driving on Empty Bad for Your Car? Does Low Fuel Damage New Cars?
Published Oct 23, 2026 · 5 min read · By Hassan, Owner of Roadmate Services
The low-fuel light is the most patient light on the dashboard. It just sits there, glowing quietly, waiting to be right. So, does low fuel damage new cars? Once in a while, rarely. As a habit, yes: the fuel pump inside the tank is cooled by the fuel around it, and a pump that often runs with little fuel wears out sooner. AAA’s advice is to fill up at a quarter tank.
Quick answer: driving on low fuel at a glance
| Situation | What it means for your car |
|---|---|
| Low fuel once in a while | Rarely harmful to a modern car |
| Driving on the light as a habit | Wears the in-tank fuel pump sooner |
| Running the tank completely dry | Stall, air in the fuel line, sediment pulled in |
| Fuel left when the light comes on | About 1 to 2 usable gallons (AAA Northeast) |
| Distance after the gauge hits E | Usually 30 to 50 miles (NAPA, via AAA Northeast) |
| Rule of thumb | Fill up at a quarter tank (AAA) |
Sources: AAA, AAA Northeast. Distances are general guides, not a promise for your car.
Does low fuel damage new cars?
New cars handle a low tank better than old ones, but they are not immune. The fuel pump and filter are what is at stake.
The fuel pump runs hotter
Almost every modern car has an electric fuel pump inside the tank. The fuel around it keeps it cool. With only a gallon or two left, the pump spends more time partly uncovered, especially on corners and hills. AAA’s Car Doctor told AAA Northeast that running consistently low can overheat the pump and lead to an early, expensive failure.
Think of the fuel as the pump’s swimming pool. It does not enjoy the shallow end.
Sediment and the fuel filter
New cars have plastic tanks, so rust is not the worry it was on older cars. Dirt can still get in with the fuel and settle at the bottom of the tank. Modern filters catch very fine particles, which is why Hagerty says running low is fine in a modern car, as long as it is not a regular habit.
Is it bad to drive with the gas light on?
Driving to the gas station with the light on is fine. Driving around for three days with it on is the habit that costs money later. If your car already hesitates on hills or whines from the tank, check the signs of a bad fuel pump before it decides for you.
Running it completely dry is a different problem, covered in what happens when you run out of gas.
How far can you drive on the gas light?
NAPA’s guide, quoted by AAA Northeast, says most cars can usually go another 30 to 50 miles once the gauge hits E. AAA’s Car Doctor puts the fuel left at the light at about 1 to 2 usable gallons. Aim for the low end of both.
To find your own car’s reserve:
- Look up the tank size in the owner’s manual.
- Next time the light comes on, fill up right away and note the gallons you put in.
- Tank size minus gallons added is roughly what was left when the light came on.
Do it once, on purpose, at a gas station. Far more relaxing than finding out on a shoulder.
Why the miles-to-empty number is a guess
In an AAA survey, 74% of drivers said they use the miles-to-empty display to decide when to fill up. AAA’s testing found its accuracy changed with driving conditions, because it is based on your recent driving.
Forty miles of easy highway can turn into far fewer in stop-and-go traffic on I-270 or with the heater blasting on a cold morning. The display is a forecast, and like any forecast in Ohio, it can change by lunchtime.
How low should you let your gas tank get?
AAA recommends filling up at a quarter tank. It says that keeps enough fuel for unexpected delays and helps prevent fuel pump damage. NAPA’s floor is one-eighth of a tank. A quarter tank also means you never plan your route around the nearest gas station.
Winter in Ohio: keep it closer to full
NHTSA advises keeping your gas tank close to full in winter. If you get stuck in snow or a long closure on the Outerbelt, fuel keeps the heater running. More in our winter roadside safety tips.
Ran it too low? Get safe, then call
- When the engine starts to sputter, turn on your hazards and move as far right as you can.
- On I-70, I-71 or I-270, stay buckled in with your hazards on unless the car is unsafe to sit in.
- Do not walk along the highway to a gas station. Call for fuel instead.
The full steps are in what to do if you run out of gas.
As Hassan puts it, most of our fuel calls happen on the highway when the driver was not watching the gauge. One driver passing through Columbus on his way to Indianapolis ran completely dry on a highway shoulder in the middle of the day. We were there in about 30 minutes and got him back on the road.
Our fuel delivery in Columbus is estimated at $60 to $110 + fuel cost. We usually bring 2 gallons, or as much as you ask for. A car run fully dry sometimes needs a jump as well, and we do that on the same visit.
Not everything is a roadside job, and we will say so. If fuel goes in and the car still will not run, that points to a worn pump or another fault, and it needs a mechanic.
5 habits that keep you off empty
- Fill up at a quarter tank, not at the light.
- Fill up before a road trip or a forecast snowstorm.
- Learn your car’s real reserve once, using the method above.
- Treat miles-to-empty as a rough guide.
- Look at the gauge when you start the car. It takes one second and saves a long afternoon.
Frequently asked questions
Is it bad to drive with low fuel in a new car?
Not once in a while. The risk is the habit: the in-tank fuel pump is cooled by the fuel around it, and a pump that often runs with little fuel works hotter and wears sooner.
How many miles can you drive after the gas light comes on?
Usually 30 to 50 miles once the gauge reaches E, according to NAPA's guide quoted by AAA Northeast. It varies by car, traffic and weather, so aim for the low end.
Does driving on low fuel damage the fuel pump?
It can shorten its life if you do it often. Most fuel pumps sit inside the tank and use the fuel for cooling. AAA recommends keeping at least a quarter tank partly to prevent fuel pump damage.
How low should you let your gas tank get?
AAA suggests filling up at a quarter tank. NAPA, quoted by AAA Northeast, says not to let it drop below one-eighth. In winter, NHTSA advises keeping the tank close to full.
Is the miles-to-empty display accurate?
It is an estimate based on your recent driving. AAA testing found its accuracy changed with driving conditions, so treat it as a rough guide.
More fuel guides: premium vs regular gas; E10, E15 and ethanol-free gas; red (off road) diesel.
The bottom line
Low fuel once in a while rarely hurts a new car. Driving on the light as a habit wears the in-tank fuel pump, because the pump relies on the fuel for cooling. Most cars have about 30 to 50 miles left at E, but the safer habit is a quarter tank, and closer to full in winter.
Out of gas in Columbus?
Call (380) 288-2822, 6 AM to 8 PM daily, Eastern Time. A dispatcher confirms the price and an arrival estimate before anyone heads your way.
Keep the needle above a quarter, and let the low-fuel light enjoy a long, quiet retirement.