Bel-Ray EXP is a semi-synthetic ester blend 4T engine oil rated 20W-50, formulated for air-cooled and liquid-cooled motorcycle engines. High film strength and oxidation resistance protect critical engine components while maintaining stable viscosity across temperature extremes.
Features
Synthetic ester blend with select synthetic and petroleum components
High film strength for superior component protection
High viscosity index for stable performance across temperature ranges
Improved oxidation resistance for extended engine life
Prolonged wet clutch life
API SN and JASO MA2 rated
Specifications
Brand: Bel-Ray
Manufacturer Part #: 99131-B1LW
UPC: 690509400007
Viscosity Grade: 20W-50
Oil Type: Semi-Synthetic Ester Blend
Weight: 2.14 lbs
Package Dimensions: 8 in L x 4 in W x 2 in H
Frequently Asked Questions
What bikes can I use this oil in?
Suitable for 4-stroke motorcycle engines. Check your owner's manual to confirm 20W-50 viscosity is correct for your model and climate.
Is this oil wet-clutch safe?
Yes — Bel-Ray EXP is formulated to prolong wet clutch life and is safe for bikes with wet multi-plate clutches.
What do API SN and JASO MA2 ratings mean?
API SN is a current gasoline engine oil standard. JASO MA2 is the motorcycle-specific standard ensuring compatibility with wet clutches and engine materials.
Can I mix this with my current oil?
Mixing different oils is not recommended. Drain and flush the engine thoroughly before switching to Bel-Ray EXP.
BRAND
Bel-Ray
TYPE
Chemicals
SKU
840-1616
WEIGHT
2.14 lb
Please contact us to confirm fitment for your specific motorcycle, or check the product title for compatibility notes.
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YOUR RATING
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✓ VERIFIED
Sep 16, 2016
Smooth shifting, reduced oil consumption
I was running my DL650 on Delo, but I didn't like how it shifted, and I was burning almost a quart between oil changes. I switched to Bel Ray on a road trip, and the difference was noticeable immediately. Shifts were smoother, and I can go 3500 miles without having to add any oil. I don't know why it works, but it does. It's worth the extra couple dollars.
✓ VERIFIED
May 10, 2019
Great oil
I use this oil in my sport bike and it works great.
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May 6, 2024
Oil
Good price, Fast shipping
✓ VERIFIED
Nov 6, 2022
Great product. Extends the life in all my engines.
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Mar 23, 2020
5 Stars
✓ VERIFIED
Apr 20, 2019
5-Star
✓ VERIFIED
Sep 21, 2017
slippery stuff
Bel-Ray been around long enough to know what they are doing and this oil proves that, works great, bike shifts just fine and stays the same between oil changes, good stuff.
✓ VERIFIED
Jun 14, 2016
Always Bel-Ray
Been using Bel-Ray products for decades...very slippery. Haha
✓ VERIFIED
Apr 6, 2015
like this product
The best oil i ever used the engine work very nice with this oil
Bel-Ray EXP Semi-Synthetic Ester ...
$14.99
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