Engine Oils 15W-40, 20W-40, 5W-30 & 4T

Name: Haruto NexaGuard Engine Oil Range
Brand: Haruto Japan

Grades & specifications

Match the grade to your equipment and operating conditions.

Grade	Viscosity (SAE)	Typical application
0W-30	SAE 0W-30	Modern petrol engines, cold-start, fuel economy
5W-30	SAE 5W-30	Passenger cars, mixed climate driving
10W-30	SAE 10W-30	Petrol & diesel cars, light commercial vehicles
15W-40	SAE 15W-40	Diesel fleets, trucks & tractors (most popular)
20W-40	SAE 20W-40	Older engines, hot climates, two-wheelers
4T	SAE 20W-40 (4-stroke)	Motorcycle 4T engines
Pump Set Oil (NexaGuard PSO)	SAE 40 · 20W-40	Diesel pump-set engines for irrigation — dusty, high-temperature running

Performance & features

Multigrade performance for petrol and diesel engines
4T oil for motorcycle engines
Strong high-temperature film strength & wear protection
Detergent-dispersant additives keep engines clean
Suitable for diesel and petrol applications

Applications & industries

Passenger cars & SUVs
Commercial fleets & trucks
Tractors & agricultural engines
Motorcycles (4-stroke)
Gensets & pump sets

Available pack sizes

500 ml · 1 L · 5 L · 7.5 L · 10 L · 20 L · 26 L · 50 L · 210 L — plus 3.5 L for Power Synth 5W-30 and Pump Set Oil

Distributor and bulk pricing available. Become a distributor →

General applications

Where each diesel grade is typically used. Always follow the grade given in the engine manual.

15W-40

Commercial Vehicles

Tippers & Dumpers

Tractors

Earthmoving Equipment

Diesel Gensets

Pump Sets

20W-40

Heavy Vehicle

Pump Set

Tractors

Light Commercial Vehicle

Generator Set

Construction Equipment

Engine Oils FAQs

What does 15W-40 mean in engine oil?

The 15W is the cold-start (winter) viscosity rating — lower means easier cold starts — and 40 is the viscosity at 100 degrees C operating temperature. 15W-40 is a multigrade oil that flows well on start-up and holds a protective film when hot, which is why it is the most popular grade for Indian diesel fleets and tractors.

Which engine oil is best for a diesel fleet in India?

For most diesel trucks, buses and tractors in India, a 15W-40 multigrade at the performance level the engine maker specifies is the standard choice. Always follow the engine maker's recommended grade and drain interval; share your engines and duty cycle and our team can advise.

Can I use car engine oil in a motorcycle?

No. Four-stroke motorcycles with a wet clutch need an oil made for motorcycles. Many car oils contain friction modifiers that can cause clutch slip. Use Haruto Nexa 4T for motorcycle engines.

What pack sizes are available?

Haruto NexaGuard engine oils come in 500 ml, 1 L, 5 L, 7.5 L, 10 L, 20 L, 26 L, 50 L and 210 L packs; Power Synth 5W-30 and Pump Set Oil also come in 3.5 L. Request a data sheet or quote for current pricing and bulk terms.

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