Bel-Ray EXP Semi-Synthetic Ester Blend 4T engine oil combines synthetic esters with select synthetic and petroleum components for superior film strength and temperature stability. Formulated for wet-clutch four-stroke motorcycles with API SN and JASO MA2 certification.
Yes — this formula is designed for four-stroke wet-clutch engines and extends clutch life compared to non-ester blends.
Yes — API SN and JASO MA2 certified for most modern four-stroke motorcycle engines.
High viscosity index means stable performance across wide temperature swings — cold starts and hot running conditions.
It's a semi-synthetic ester blend that combines synthetic esters with selected synthetic and petroleum components for balanced performance and cost.
| BRAND | Bel-Ray |
| TYPE | Chemicals |
| SKU | 840-1620 |
| WEIGHT | 420.41 lb |
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.
I use this oil in my sport bike and it works great.
Good price, Fast shipping
Great product. Extends the life in all my engines.
5 Stars
5-Star
