Source-led automotive research / published 2026-10-19

Alto K10 and Celerio share a 998 cc engine family—not a fuel tank size.

The short answer

Do India's Maruti Suzuki Alto K10 and Celerio have the same engine displacement and petrol fuel tank capacity?

Maruti Suzuki's current India vehicle references identify a 998 cc K10C engine in both models, but specify a 27-litre petrol tank for Alto K10 and 32 litres for Celerio. Neither value should be transferred to a Japan-market Suzuki Alto, a CNG cylinder, or an older vehicle generation.

Applicable to: India-market Maruti Suzuki product pages inspected October 2026, petrol editions with the 998 cc K10C engine; variants, transmission and model-year approval must match. Not a statement of Sri Lankan-imported or historical specifications.

Use the tank comparison when planning a refill, not a promised range

Applies to: India-market Maruti Suzuki product pages inspected October 2026, petrol editions with the 998 cc K10C engine; variants, transmission and model-year approval must match. Not a statement of Sri Lankan-imported or historical specifications.

What sharing K10C does and does not tell you

The Alto K10 and Celerio rows answer a narrow question: a shared engine family does not make the petrol tank identical. For a refill or purchase comparison, first check the body/model and fuel system. The larger nominal tank is not evidence that one car consumes less fuel.

A pump reading below the stated capacity does not itself show a defect. The tank may still contain fuel, and this comparison does not measure its usable reserve or prescribe filling beyond the pump’s normal stop.

Original manufacturer specification linked in the comparison ↗

Keep petrol and CNG units separate

The petrol figure describes liquid-fuel capacity. A CNG cylinder’s water-equivalent volume is a different measurement, so its number should not be used in petrol-range arithmetic. For an imported car, also verify it is the India-market model rather than a Japan 660 cc Alto.

Original manufacturer specification linked in the comparison ↗

01 / Direct answer

Manufacturer-specified figures by configuration

These are manufacturer-referenced values for the named configurations only. Read the exact source for your engine, trim and market instead of carrying a measurement across model names or model years.

Original manufacturer-referenced figures, scoped to each named configuration. Source links open the official publication.
Vehicle configuration	Published value	Context and limits	Manufacturer evidence
India Maruti Alto K10 · K10C petrol	998 cc · 27 L petrol tank	Manufacturer Alto K10 India product page; petrol MT/AGS editions, not CNG water-equivalent cylinder	View original source ↗
India Maruti Celerio · K10C petrol	998 cc · 32 L petrol tank	Manufacturer Celerio India product page; distinct body and petrol tank from Alto K10	View original source ↗
India K10C engine family in both	K10C 1.0L family	Maruti Suzuki engineering directory lists K10C for Alto K10 and Celerio; not proof of identical accessories or service parts	View original source ↗

02 / Before you use these values

Match the exact vehicle.

Check 1

Check the exact India-market 998 cc K10C vehicle, build year and fuel type. Petrol 27/32 litres cannot be substituted for CNG cylinder water capacity.

Check 2

The imported Japan Suzuki Alto is a different 660 cc kei platform; this 998 cc India Alto K10 result does not identify its engine, transmission or tank.

Check 3

Fuel tank capacity alone does not prove cruising range. Do not infer oil grade, key fob battery or gearbox fluid from shared K10C engine-family wording.

03 / Verification and next answers

Where the numbers came from

Contrasted original Maruti Suzuki India Alto K10 and Celerio model product sheets for petrol tank capacity and engine displacement, checked against the corporate K10C engine registry. Kept model name, domestic-market scope and fuel-system qualifiers explicit; no Sri Lanka/older model specifications inferred.

Primary evidence (3 sources)

Manufacturer source 1marutisuzuki.com ↗
1 exact configuration row supported
Manufacturer source 2marutisuzuki.com ↗
1 exact configuration row supported
Manufacturer source 3marutisuzuki.com ↗
1 exact configuration row supported

This page is an original explanation of limited factual specifications. CarFactBook has not inferred an exact VIN, fitted replacement part, global-equivalent manual or unpublished service quantity.

Source count: 3. The original manufacturer's vehicle-specific manual and labels take priority if your exact car differs from these listed reference configurations.

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India-market owner research

Published India-market configurations

Each link is one India-market engine, fuel and transmission combination with owner-approved manufacturer facts. Match your car's engine, fuel (petrol or CNG) and gearbox before using a value.