Bel-Ray EXS Full Synthetic Ester 10W-50 Engine Oil 4L - Harley & Indian V-Twin
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-50 viscosity is crafted for the most demanding V-twin applications. This 4-liter container provides ample supply for a thorough oil change, ensuring your Harley-Davidson or Indian Motorcycle receives premium lubrication. It's formulated with 100% synthetic ester base stocks for unmatched film strength and thermal stability.
Why riders pick this
- 100% synthetic ester base oils for superior film strength
- Highest 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
When your V-twin is pushed to its limits, the right engine oil is non-negotiable. Bel-Ray EXS Full Synthetic Ester 4T engine oil in 10W-50 viscosity offers a robust solution for riders seeking maximum protection and consistent performance. This 4-liter volume is ideal for ensuring your engine is fully serviced with a lubricant designed to excel in wide temperature ranges and high-stress environments.
Unrivaled Engine Durability
- Features 100% synthetic ester base oils for superior film strength and protection
- Highest viscosity index ensures excellent temperature stability and consistent performance
- Exceptional shear stability actively resists viscosity loss and breakdown over time
- Reduces internal friction, contributing to lower engine operating temperatures
- Meets API SN and JASO MA2 specifications for four-stroke motorcycle engines
Confidence for Every Ride
The 10W-50 viscosity of Bel-Ray EXS is particularly beneficial for V-twin engines that operate in hotter climates or under sustained heavy loads. It provides a thicker protective film at high temperatures while maintaining good flow characteristics at startup. This ensures critical engine components are shielded from wear, allowing you to ride with confidence, knowing your engine is optimally protected.
Specifications
- Brand: Bel-Ray
- Manufacturer Part #: 99160-B4LW
- Viscosity: 10W-50
- Volume: 4 liters per bottle
- UPC: 690509200294
- Weight per Bottle: 8.7383 lbs
Common questions
What is the primary difference between 10W-50 and other oil viscosities for V-twins?
10W-50 oil provides a balance of good cold-start flow (10W) and excellent high-temperature protection (50). This makes it ideal for engines that experience significant temperature variations or are operated in hot conditions, ensuring robust lubrication when needed most.
Is this 4-liter bottle enough for an oil change on my V-twin?
A 4-liter container is generally suitable for a full oil change on many Harley-Davidson and Indian Motorcycle models. However, always refer to your specific motorcycle's owner's manual for the exact oil capacity required to ensure proper fill levels.
Does this synthetic oil extend oil change intervals?
While synthetic oils like Bel-Ray EXS offer superior durability and protection, it's always recommended to follow the oil change intervals specified in your Harley-Davidson or Indian Motorcycle owner's manual. Consistent maintenance is key to engine longevity.
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 | 840-1627 |
| WEIGHT | 8.74 lb |
