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Best 15W50 API SN Synthetic Engine Oil for 350cc to 650cc Bikes – Ideal for Royal Enfield & BS6 Motorcycles
API SN Certified | Super Synthetic Technology | High Temperature Stability | Made in India
HARAT Biker Royal 4T Plus 15W50 is a premium 4 stroke bike engine oil specially engineered for high-performance motorcycles in the 350cc to 650cc segment, including Royal Enfield and other powerful bikes. Developed with advanced Super Synthetic Technology (SST), this 15W50 API SN engine oil delivers superior engine protection, smooth riding performance, and extended engine life, even under extreme riding and high-temperature conditions.
Formulated using high-quality base oils and advanced additive technology, this synthetic bike engine oil provides excellent resistance against wear, oxidation, and sludge formation, ensuring a cleaner engine and consistent performance over longer intervals. Its high viscosity stability makes it ideal for heavy-duty engines, offering reliable lubrication during long-distance touring, highway rides, and stop-and-go city traffic.
Designed for Indian road and climate conditions, this 15W50 engine oil for 350cc to 650cc bikes enhances pickup, reduces engine noise, and ensures smooth clutch and gear performance. It also helps improve fuel efficiency, minimize maintenance costs, and protect critical engine components, making it one of the best engine oils for Royal Enfield and performance bikes in India.
Ideal for cruiser and touring motorcycles, this oil maintains strong viscosity, reduces engine wear, and ensures consistent performance in high temperatures, traffic conditions, and long-distance rides.
COMPATIBLE BIKES
| Bike Model | Brand |
|---|---|
| Classic 350 / Bullet 350 / Hunter 350 | Royal Enfield |
| Meteor 350 / Thunderbird 350 | Royal Enfield |
| Himalayan 411 / Himalayan 450 | Royal Enfield |
| Interceptor 650 / Continental GT 650 | Royal Enfield |
| Dominar 400 | Bajaj |
| KTM Duke 390 / RC 390 | KTM |
| BMW G 310 R / G 310 GS | BMW |
| TVS Apache RR 310 | TVS |
| Honda CB350 / H'ness CB350 / CB350RS | Honda |
| Honda CB300R | Honda |
| Yamaha R3 / MT-03 | Yamaha |
| Yamaha R15 (Performance Riders) | Yamaha |
| Suzuki Gixxer 250 / V-Strom SX 250 | Suzuki |
| Other 350cc–650cc motorcycles | All Brands |
Compatible with most 4 stroke motorcycles in the 350cc to 650cc segment including Royal Enfield, KTM, Honda, Yamaha, Suzuki, BMW & more.
WHY SUPER SYNTHETIC TECHNOLOGY?
Super Synthetic Technology ensures maximum protection and performance for high-capacity engines, especially during long rides, heavy load conditions, and extreme temperatures.
Maintains viscosity in extreme heat
Reduces wear in high power engines
Prevents sludge & deposits
Reliable for long distance riding
KEY BENEFITS
HOW TO USE
- Start engine and warm for 2–3 minutes
- Drain old oil completely
- Replace oil filter if required
- Refill recommended quantity of Bharat 15W50 oil
- Check oil level and ensure proper level
- Run engine for proper oil circulation
FREQUENTLY ASKED QUESTIONS
| SR. NO. | CHARACTERISTICS | TEST | UNIT | RANGE |
|---|---|---|---|---|
| 1 | SAE Rating | - | - | 15W50 |
| 2 | Performance Level | - | - | API SN |
| 3 | Appearance | VISUAL | - | C & B |
| 4 | Kinematic Viscosity @ 40°C cSt | ASTM D445 | mm²/s | 156.8 |
| 5 | Kinematic Viscosity @ 100°C cSt | ASTM D445 | mm²/s | 17.85 |
| 6 | Viscosity Index min. | ASTM D2270 | none | 146 |
| 7 | Flash Point COC °C | ASTM D92 | °C | 248°C |
| 8 | Pour Point °C max. | ASTM D97 | °C | -27°C |
| 9 | TBN min. | ASTM D2896 | mgKOH/g | 9.8 |
At Bharat Lubricants, we aim to provide fast, secure, and reliable delivery of all orders placed through our online store. Please read our Shipping Policy carefully to understand how shipping, handling, and delivery are managed.
1. ORDER PROCESSING TIME
· All orders are processed within 1–2 business days after payment confirmation.
· Orders placed on weekends or public holidays will be processed on the next business day.
· In case of delays due to high order volume, we will notify you.
2. SHIPPING PARTNERS
We ship through trusted courier partners across India, including:
· Delhivery
· DTDC
· Blue Dart
· Professional Couriers
· India Post (for remote locations)
3. SHIPPING CHARGES
· Shipping charges are calculated at checkout based on weight, location, and courier partner.
· Any promotional “Free Shipping” offers will be mentioned on the website.
4. DELIVERY TIME
Estimated delivery times:
· Metro Cities: 3–5 business days
· Tier 2 & Tier 3 Cities: 4–7 business days
· Remote / Rural Locations: 7–10 business days
Please note: Delivery timelines are estimated, not guaranteed.
5. ORDER TRACKING
· Once your order is shipped, you will receive an email/SMS with the tracking number and courier link.
· Tracking may take up to 24 hours to become active.
6. SHIPPING RESTRICTIONS
· We currently ship only within India.
· Hazardous or restricted items may not be eligible for shipping through certain carriers.
· Large drums or bulk quantities may require special transportation arrangements.
7. DELAYS & RESPONSIBILITY
Bharat Lubricants is not liable for delays caused by:
· Courier or logistics partners
· Weather conditions
· Natural disasters
· Strikes or operational issues
· Incorrect or incomplete shipping address
Once the product is handed over to the courier, risk and responsibility transfer to the customer.
8. DAMAGED OR LOST PACKAGES
If your package arrives damaged:
1. Take photos/videos of the package and product.
2. Contact us within 24 hours of delivery.
3. Do not discard packaging until your claim is processed.
For lost packages, we will assist in raising a claim with the courier.
9. WRONG ADDRESS / FAILED DELIVERY
If an order is returned due to:
· Incorrect address
· No one available to receive
· Phone number unreachable
Reshipping charges will apply.
10. INTERNATIONAL SHIPPING
We currently do not offer international shipping.
11. CONTACT INFORMATION
For any shipping-related questions:
Bharat Lubricants
Hojiwala Industrial Estate, Gate No. 3,
Road No. 20, Surat – 394230, Gujarat, India
info@bharatlubricants.com
+91 75748 47801