✓ VERIFIED
Jun 8, 2015
Great Oil
Can tell how smooth the bike shifts using this oil
BEL-RAY
SKU: 840-1622
Bel-Ray EXS Full Synthetic Ester 10W-40 Engine Oil 4L - Harley & Indian V-Twin
$81.99
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About Bel-Ray
Bel-Ray has manufactured motorcycle lubricants since 1948, with V-twin specific engine, primary and transmission oils formulated for air-cooled operating temperatures.
Bel-Ray EXS Full Synthetic Ester 4T engine oil in 10W-40 viscosity is engineered for the demands of high-performance V-twin engines. This advanced formula provides exceptional protection and consistent performance, mile after mile. It's built with 100% synthetic ester base stocks to ensure your engine runs cooler and cleaner.
Why riders pick this
- 100% synthetic ester base oils for superior film strength
- High viscosity index for excellent temperature stability
- Exceptional shear stability resists viscosity loss
- Reduces friction to help lower engine operating temperatures
- API SN and JASO MA2 certified for four-stroke engines
For V-twin riders who demand top-tier performance and protection, Bel-Ray EXS Full Synthetic Ester 4T engine oil in 10W-40 viscosity delivers. This 4-liter container provides ample volume for a complete oil change, ensuring your Harley-Davidson or Indian Motorcycle engine benefits from premium lubrication. Its formulation with 100% synthetic ester base stocks offers a significant upgrade in engine care.
Advanced Protection for Your V-Twin
- Formulated with 100% synthetic ester base oils for superior film strength
- High viscosity index ensures stable performance even at elevated temperatures
- Exceptional shear stability actively resists viscosity loss over time
- Reduces internal friction, helping to lower overall engine operating temperatures
- Meets API SN and JASO MA2 specifications for four-stroke motorcycle engines
Optimize Your Engine's Longevity
Choosing the right oil is crucial for the longevity and performance of your V-twin. Bel-Ray EXS 10W-40 is designed to maintain its protective qualities under the stress of long rides and varied conditions, making it an excellent choice for daily riders and performance enthusiasts alike. Its ability to resist viscosity breakdown and reduce friction means less wear and a more efficient running engine.
Specifications
- Brand: Bel-Ray
- Manufacturer Part #: 99161-B4LW
- UPC: 690509400052
- Viscosity: 10W40
- Quantity: 4 liters
- Weight: 7.94 lbs
- Package Dimensions: 10 in L × 8 in W × 4 in H
Common questions
Is this 10W-40 oil suitable for high-temperature riding conditions?
Yes, Bel-Ray EXS Full Synthetic Ester oil features a high viscosity index and thermal stability, making it excellent for maintaining film strength and protecting your V-twin engine in sustained high-temperature environments.
Can I use this 4-liter container for a full oil change on my Harley or Indian?
Most Harley-Davidson and Indian Motorcycle models will require a specific volume of oil for a full change. A 4-liter container is typically sufficient for many V-twin models, but always refer to your motorcycle's owner's manual for exact capacity.
Does this synthetic oil require a special filter?
No, Bel-Ray EXS Full Synthetic Ester oil is compatible with standard motorcycle oil filters designed for your specific Harley-Davidson or Indian model. However, using a high-quality filter is always recommended for optimal performance.
Ordering from Vtwinbikers
- Brand new, sourced through authorized US distribution — never used, never grey-market.
- Not sure it fits? Use Shop by Bike to filter by your year and model, or email us and we will confirm before you order.
- Harley-Davidson and Indian Motorcycle is all we do, so you are talking to people who ride what you ride.
| BRAND | Bel-Ray |
| TYPE | Chemicals |
| SKU | 840-1622 |
| WEIGHT | 7.94 lb |
Please contact us to confirm fitment for your specific motorcycle, or check the product title for compatibility notes.
CUSTOMER REVIEWS
5
4 RATINGS
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✓ VERIFIED
Oct 25, 2021
So Far So Good
Has been run 1,000 miles in my 2016 Ninja 650 ABS with no issues.
✓ VERIFIED
Aug 6, 2020
A+
Good stuff, I guess. Hard to say I notice a difference but I'm sure it helps having the Ester. Good quality oil.
✓ VERIFIED
Jul 25, 2012
Good oil! Put it in my last two harleys ....
