How to Increase Mileage of Swift?

The Maruti Suzuki Swift is easily one of the most fuel-efficient hatchbacks in India, but that also depends heavily on which Swift variant you drive. From the older 1.3L diesel to the more recent DualJet petrol and even the factory-fitted CNG variant introduced in 2022, there’s often a wide gap between what’s claimed and what drivers actually get on the road. Real-world Swift mileage tends to vary based on city vs highway runs, transmission (manual vs AMT), and also how well the car is being maintained. 

Whether you drive a first-gen Swift or the latest ZXi+ CNG, improving fuel efficiency is actually possible and quite easy. In this guide, we’ll walk through ARAI-rated figures across all generations and fuel types of the Swift, and then break down city and highway mileage with specific tips to help you get the best mileage from your car.

Maruti Suzuki Swift ARAI Mileage

Here are the ARAI-tested fuel efficiency figures for the Swift mileage:

Note: ARAI figures are optimum laboratory-tested numbers. The actual Swift mileage is affected by driving conditions, load, tyre pressure and driving habits.

Maruti Suzuki Swift City Mileage

Your Swift mileage comes to the ultimate test in city conditions. According to owner reports and confirmed inputs on user forums such as Team-BHP, this is what you can realistically expect:

Factors That Impact Swift City Mileage

Here's a brief analysis of what could be reducing your Swift mileage in bumper-to-bumper city driving:

1. Short, Frequent Trips

The engine of Swift does not reach its optimal efficiency when it comes to short runs. Cold starts consume more fuel per km, particularly in petrol models.

2. Aggressive Driving Style

Over-revving 1st and 2nd gear? That’s a proven Swift mileage killer.

3. Idling at Long Signals

In newer Swifts, even when the start-stop technology is idle, there is no need to keep the engine running as it burns unnecessary fuel.

4. AC Overuse in Traffic

In slow-moving traffic, running the AC at lower temperatures strains the engine, particularly in AMT models.

5. Worn Spark Plugs / Air Filters

If you delay your servicing or have dirty filters, it could dip your Swift mileage, and this is quite common for older Swifts that have run past 50,000 km.

How to Improve Swift City Mileage?

These Swift-specific tips will help you squeeze out more mileage in the cramped city conditions:

1. Shift Up Early

In the petrol variant, shift at 2,000-2,200 RPM and in diesel, maintain it at 1,800-2,000 RPM. The fewer the revs, the better will be the fuel economy.

2. Use Eco Mode When Available

Eco settings are available in some newer Swifts or with aftermarket tuneups. Use it when you are cruising at low speed in the city.

3. Cut the AC When Parked

Don’t leave the car idling with the AC on because this consumes a lot of fuel even within a short period of time.

4. Plan Traffic-Free Routes

The traffic layer on Google Maps will help you avoid the red zones. Swift's mileage is highest when you do not have to change gears all the time.

5. Weekly Tyre Pressure Checks

Under-inflated tyres pull down your mileage by up to 2 kmpl. Maintain the OEM recommended PSI, that is approximately 33 front / 30 rear.

6. Declutter the Boot

Get rid of unnecessary tools and unused junk in the boot. Even a load of 10kg can significantly impact the fuel economy.

Maruti Suzuki Swift Highway Mileage

Whether you are driving on the expressway in a DualJet petrol or through bypasses in the old DDiS diesel, highway runs usually reflect better Swift mileage numbers, provided you drive smart.

Factors That Impact Swift Highway Mileage

Your Swift mileage can take a hit even on the highways when you overlook the following important points:

1. Cruising Above 100 kmph

The engine is capable of it, but going beyond 100 kmph increases drag and drops 2-3 kmpl in the fuel economy.

2. Sudden Braking and Overtaking

Frequent lane changing and throttle bursts disrupt engine rhythm, as can be seen with petrol AMTs and older 4ATs.

3. Roof Load or Excess Luggage

Even a thin roof carrier generates huge aerodynamic drag. It is the same case with a boot packed with unnecessary items.

4. Window-Down Driving

Wind resistance goes up, and Swift mileage comes down when the windows are kept open at higher speeds.

5. Old Engine Oil or Air Filter

Internal friction is increased by sludge-filled oil or blocked filters. 

How to Improve Swift Highway Mileage?

These highway tips will help you get the best numbers in terms of Swift mileage:

1. Cruise at 80–90 kmph

This range is the best for Swift since steady revs and low air drag deliver the best mileage figures, especially in the DualJet models.

2. Use Cruise Control (If Available or Added Aftermarket)

Some newer Swifts come with cruise control, and if your variant has it, you must use it on highways. It maintains speed consistently to save fuel on long expressways.

3. Don’t Ride the Clutch

In older diesel engines, it is a waste of momentum and fuel to coast with the foot half-down on the clutch.

4. Plan Fuel Stops Strategically

Top up early and avoid running near empty. Low-level fuel in the tank results in increased fuel evaporation and wears out the pumps.

5. Inflate Tyres to Highway PSI

Add 2 PSI over standard when going for highway runs. This reduces rolling resistance without compromising grip.

Summary

The Maruti Suzuki Swift has been the favourite car of Indian drivers who desire the best fuel efficiency. However, even the most frugal engine will not be able to provide the best mileage without smart driving. Stick to early gear shifts in the city, cruise lightly on highways, and always stay on top of your tyre pressure and servicing. All these small habits will show a difference in your Swift mileage and your fuel bills in the long run.

Want to get more value without new car prices? Check out a used Maruti Suzuki Swift, it’s still one of the smartest buys in the Indian hatchback market.