Maruti Alto K10 - Why Lower Mileage Than Celerio? | V3Cars

If you’re a keen auto enthusiast, then you must have noticed that the new 2022 Maruti Suzuki Arena Alto K10 has a lower mileage figure than the Celerio. It’s worth noting that both of these cars use the same engine and transmission. Still, the Celerio manages to deliver up to 1.78kmpl better mileage than the Alto K10. We approached Maruti Suzuki’s Chief Technical Officer, CV Raman, to find out.

Maruti Alto K10

First, let’s look at the official specs of the 2 cars:

ALTO K10 VS CELERIO

ENGINE SPECS COMPARISON

 

Alto K10 13-inch

Celerio 14-inch

Celerio 15-inch

Engine

1.0L

1.0L

Cylinder

3

3

Displacement

998cc

998cc

Power

66PS @ 5500rpm

66PS @ 5500rpm

Torque

89Nm @ 3500rpm

89Nm @ 3500rpm

Manual

5-speed

5-speed

Manual FE

24.39kmpl

25.24kmpl

24.97kmpl

Automatic 

5-speed AMT

5-speed AMT

Auto FE

24.9kmpl

26.0 - 26.68kmpl

26.00kmpl

Tyre Size

145/80 R13

165/70 R14

175/60 R15

As you can see, the Alto K10 petrol-manual powertrain has a 0.58kmpl-0.85kmpl lower mileage than the Celerio. With the petrol-automatic, the gap widens to 1.1kmpl-1.78kmpl.

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No Idle Start/Stop

The first and the most prominent one is the lack of idle starts/stop feature. The ARAI fuel efficiency test cycle also includes idling in traffic to partially simulate real-life driving conditions. The same 1.0L petrol engine in the S-Presso, Celerio and WagonR gets the idle start/stop feature, which improves their official as well as real-world mileage figure.

Lower Effective Gearing

The Alto K10 also uses 13-inch wheels across all variants. Meanwhile, the Celerio gets 14-inch wheels in lower variants and 15-inch alloys in the higher variants. Now, you could argue that the lower rotating mass in the 13-inch wheels should help the Alto K10 improve its mileage figure further. However, the smaller overall circumference of the tyre reduces the effective gearing of the tyres. Hence, the Alto K10’s tyres make fewer rotations with slightly higher torque at the wheels at the same RPM in the same gear than the Celerio.

The Celerio’s variants with the 14-inch tyres have a 4.5% bigger circumference than the Alto K10’s 145/80 R13 tyres. The top-variant’s 15-inch tyres have a 5.4% bigger circumference, which somewhat compensates for the higher rotating mass.

Because of this tyre size difference, the Alto K10 has an effectively lower gearing overall and more torque at the wheel. So, you can expect the Alto K10 to offer a peppier driving experience and better acceleration. This characteristic is in line with the Alto K10’s personality as enthusiasts lovingly call it the ‘pocket rocket’. However, at highway speeds, its engine will have to run at higher RPMs than the Celerio’s.

Also Read: 2022 Maruti S-Presso Facelift – What’s New?

Maruti Suzuki Celerio Petrol CNG Variants Explained - Which One To Buy?

Note: Check your car’s fuel cost with Fuel Cost Calculator in India

ABOUT THE AUTHOR

Mahesh Yadav

Mahesh is a fan of compact, quirky and underrated vehicles that punch above their weight. Multix, Nano and Navi are his favorites.

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