Yamaha Fascino, Ray ZR & Aerox 155 Engine Oil Capacity

Yamaha’s scooter range splits into two quite different machines: the air-cooled 125cc Fascino and Ray ZR, which share an engine, and the larger liquid-cooled Aerox 155, which does not. Their oil requirements differ accordingly, and treating them as interchangeable is a common mistake.

The short answer: Fascino 125 and Ray ZR 125 take approximately 0.8 to 0.9 litres; the Aerox 155 takes approximately 0.9 to 1.0 litre. All three use 10W-40.

Yamaha Scooter Oil Capacity

Model	Engine oil capacity	Cooling	Oil grade
Yamaha Fascino 125	~0.8 – 0.9 L	Air-cooled	10W-40
Yamaha Ray ZR 125	~0.8 – 0.9 L	Air-cooled	10W-40
Yamaha Aerox 155	~0.9 – 1.0 L	Liquid-cooled	10W-40

Oil specification: SAE 10W-40, JASO MA rated. Yamalube meets this; quality equivalents in the same grade are equally suitable.

Fascino and Ray ZR are the same machine underneath

Beneath quite different styling — the Fascino aims retro, the Ray ZR aims sporty — both use Yamaha’s 125cc Blue Core engine. Their service specifications, oil capacity and intervals are effectively identical. If you find a figure for one, it applies to the other.

Why we give a range

Published figures for these scooters vary between about 0.8 and 1.0 litre depending on the source. That variation comes from the same causes it does across the industry: some sources quote total or dry-fill capacity rather than the refill quantity after a normal drain, and some model years differ.

The practical approach is the same regardless: fill to around 800 ml, check the dipstick, and top up only if the level genuinely needs it. Do not empty a 1-litre bottle on faith.

The Aerox Is a Different Proposition

The Aerox 155 is the outlier in Yamaha’s scooter range and needs treating as such.

It is liquid-cooled. The Fascino and Ray ZR shed heat through airflow over the cylinder. The Aerox has a radiator, coolant and a water pump — a genuine cooling system that is a real service item. Coolant contains corrosion inhibitors that deplete over time; once they are gone the coolant looks fine while the system corrodes internally and cooling efficiency drops.

If you have moved to an Aerox from an air-cooled scooter, this is maintenance you have never had to think about. Have the level and condition checked at every service. Never top up with plain water except as a genuine roadside emergency, and never use car coolant, which can be aggressive toward motorcycle aluminium and seals.

It works its oil harder. The Aerox’s VVA engine produces considerably more power than a 125 and revs higher to do it, which puts more thermal and shear stress on the oil.

Book a doorstep Yamaha scooter service. Correct 10W-40 oil, precise fill, coolant checked on the Aerox — from ₹999. Call +91-8668500383 or WhatsApp us.

The Second Oil Most Owners Never Change

Like every automatic scooter, these have two separate oils:

1. Engine oil (~0.8–1.0 L) — changed every few thousand kilometres.
2. Final drive gear oil (typically ~100–150 ml) — serving the reduction gearbox behind the CVT, changed far less often and very frequently never at all.

Neglected gear oil produces a whine from the rear that rises with speed, commonly misdiagnosed as a wheel bearing. Left long enough it becomes genuine gearbox wear — a far more expensive repair than the small bottle of oil that would have prevented it.

Grade: 10W-40, Not 10W-30

Yamaha specifies 10W-40. Honda specifies 10W-30 for the Activa and Dio. Both are scooters; the oils are not interchangeable.

The second figure describes viscosity at operating temperature, and 10W-40 keeps a slightly thicker protective film when hot. In Pune’s summer, with a small engine crawling through traffic and oil temperatures running high, that difference matters.

JASO MA certification is equally important — scooter engines share oil with the clutch mechanism, and friction modifiers found in car oils can interfere with clean engagement.

Oil Change Interval in Pune

Riding pattern	Recommended interval
Daily city commuting	Every 3,000 km
Moderate mixed use	Every 3,500 km
Light use	Every 4,000 km
Low usage (under 2,000 km/year)	At least once every 12 months

Scooters live entirely in the conditions that are hardest on oil. They rarely see a steady-speed highway run with good airflow; instead they spend their lives at low speed in stop-start traffic. Journeys are short, so the engine frequently never gets hot enough for long enough to boil off crankcase condensation — a particular problem through Pune’s monsoon, where accumulated water forms acids that attack bearing surfaces. And time at signals with the engine idling ages the oil while adding nothing to the odometer.

Checking the Level

1. Run the engine two to three minutes, then switch off and wait a couple of minutes.
2. Put the scooter on its centre stand on level ground.
3. Remove the dipstick, wipe clean, reinsert fully, and read.
4. Aim for the upper half of the marked range. Never above maximum.

Yamaha Scooter Service Costs in Pune

Service	Cost
Oil change only (10W-40 + labour)	From ₹999
General service including oil change	From ₹999
Air filter replacement	₹100 – ₹250
Gear oil change	Quoted on inspection
Coolant check / top-up (Aerox)	Quoted on inspection

For full Yamaha service schedules and costs, see our Yamaha service cost guide, or the scooty service cost guide for all scooters.

Other Scooters

• Honda Activa & Dio — see our Activa & Dio oil capacity guide
• Suzuki Burgman & Access — see our Suzuki scooter oil capacity guide
• Every other model — see the complete bike engine oil capacity chart

Doorstep Yamaha Service Across Pune

Our mechanics come to your home or office with the correct 10W-40 JASO MA oil, drain completely, measure the fill rather than emptying a bottle, check the final drive gear oil, and inspect coolant on the Aerox.

We service Yamaha scooters across Hinjewadi, Baner, Kothrud, Wakad, Viman Nagar and every other area in Pune and PCMC.

Book your Yamaha scooter service — from ₹999, transparent pricing, no advance payment. Or call +91-8668500383.