01 S - Intelligent Semi Synthetic Formula 15W40

Grade

15W40

API Certification

CH-4

Packaging Available

3.5 Ltr, 4 Ltr, 5Ltr.

Recommended For

Suited for older diesel cars and light commercial vehicles: Tata Sumo/Safari diesel (older), Mahindra Bolero/Scorpio diesel (pre-2016), Maruti Suzuki Gypsy diesel, Hindustan Motors Ambassador diesel, first-generation Ford Ikon diesel, and diesel generators. For modern BS6 diesel cars (Hyundai Creta diesel, Tata Nexon diesel), upgrade to API CK-4 or a dedicated BS6 diesel grade.

About This Product

The Carbo Oil 01 S 15W40 is API CH-4 rated diesel engine oil for pre-BS4 diesel passenger vehicles. CH-4 provides effective protection for naturally-aspirated and lightly turbocharged diesel engines. Note: this is a diesel-rated product — not suitable for petrol engines. Suitable for Tata Sumo diesel, Mahindra Bolero pre-2020, and older diesel passenger platforms. Change interval: 7,500–10,000 km.

Frequently Asked Questions

Is 15W40 a diesel oil, petrol oil, or both?

The 01 S 15W40 carries API CH-4 certification, which is a diesel engine specification. CH-4 is specifically designed for 4-stroke diesel engines meeting pre-BS4/Euro 4 emission standards. This makes it appropriate for: Tata Indica/Indigo diesel, Mahindra Bolero diesel (older generation), Maruti Suzuki diesel (older models), and agricultural tractors. While 15W40 grades are sometimes used in petrol engines, this particular product is optimised for diesel applications.

Which diesel vehicles in India are best suited for 01 S 15W40 CH-4?

Can I use 15W40 diesel oil in a petrol car in an emergency?

In a genuine emergency (stranded with no petrol oil available), a small top-up with 15W40 CH-4 diesel oil will not immediately damage a petrol engine. However, diesel oils contain different additive packages — typically higher alkalinity (TBN) and soot-handling detergents that are unnecessary in petrol engines. For regular use, always use the petrol-spec grade your car requires. Change the oil at the earliest opportunity after any emergency diesel-oil top-up.

How much engine oil does a diesel car or light commercial vehicle need for a full change?

Oil capacity varies by engine size — always check your owner's manual, but typical ranges are: - **Diesel passenger cars** (Mahindra Bolero/Scorpio, older Maruti/Tata diesels): 3.5–4.5 litres including filter - **Light commercial vehicles** (Tata Ace, Mahindra Supro): 4–5 litres - **Agricultural tractors**: 6–10 litres depending on engine displacement Always drain fully, replace the oil filter, and check the dipstick after refilling before starting the engine.