Bel-Ray EXS Full Synthetic Ester 4T Engine Oil - SYN Ester OIL 10w40 1lt (12/Ca…

Bel-Ray EXS Full Synthetic Ester 4T engine oil in 10W-40 viscosity, formulated with 100% synthetic ester base stocks for superior film strength and thermal stability. API SN and JASO MA2 registered for use in four-stroke motorcycle engines.

Features

• 100% synthetic ester base oils
• Superior film strength for increased component protection
• High viscosity index maintains viscosity at elevated temperatures
• Exceptional shear stability resists viscosity loss over time
• Reduced friction lowers engine operating temperatures

Specifications

• Brand: Bel-Ray
• Manufacturer Part #: 99161-B1LW
• UPC: 690509400045
• Viscosity: 10W-40
• Type: Full Synthetic Ester
• Volume: 1 liter
• Certification: API SN, JASO MA2
• Weight: 2.07 lbs
• Package Dimensions: 8 in L x 4 in W x 2 in H

Frequently Asked Questions

Is this oil suitable for my motorcycle engine?

Yes — Bel-Ray EXS is formulated for four-stroke motorcycle engines and registered to API SN and JASO MA2 standards.

Can I use this in my Harley or Indian?

Yes. This 10W-40 synthetic is compatible with any four-stroke cruiser, touring, or V-Twin engine.

What makes a synthetic ester oil better than mineral oil?

Synthetic ester oils provide superior film strength, thermal stability, and reduced friction, which extends engine life and improves performance.

How often should I change this oil?

Follow your manufacturer's recommended service interval — typically every 2,000–5,000 miles depending on riding conditions.