Motul 300V 4T Racing Engine Oil (Ester Core) – 10W-40 / 15W-50 – 1L (Choose Variant) | Genuine Motul

Motul 300V 4T is a track-proven, ester-based racing engine oil built for high-RPM, high-heat riding and wet-clutch motorcycles.
Choose 10W-40 or 15W-50 (1L) as per your owner’s manual—both variants focus on engine response, heat control, and gearbox protection.
Shipped securely by Under The Hood with fitment-grade guidance on choosing the correct viscosity.

If your bike has started feeling rough on pickup, “busy” at high RPM, or you’re riding in conditions where oil gets punished (traffic heat, long tours, spirited riding, track days), Motul 300V 4T is designed for exactly that use-case: factory & high-performance stock motorcycles operating across wide temperature and RPM ranges.

This listing gives you two proven 1L options: 300V Road Racing 10W-40 and 300V Road Racing 15W-50 (select from variants). Motul’s ESTER Core® approach is built to keep a strong oil film under stress and support wet-clutch compatibility (JASO MA2)—the same area where many generic “fully synthetic” oils fall short when you push the bike hard.

How to choose the right grade 

• Pick 10W-40 only if your manual recommends SAE 10W-40. It is a common choice for performance street bikes needing fast response across varied weather.

• Pick 15W-50 only if your manual recommends SAE 15W-50, typically preferred when you want a thicker hot-viscosity feel in higher heat / load riding.

Under The Hood advantage: genuine sourcing, strong packing, and right-grade guidance so customers don’t buy the wrong viscosity “just because someone on Amazon said so.”

KEY FEATURES & BENEFITS 

• Genuine Motul 300V 4T Road Racing (racing 4T engine oil)

• ESTER Core® Technology focused on oil-film adherence and performance under stress

• Wet clutch compatibility tested to JASO T903:2023 MA2

• Designed for factory & high-performance stock motorcycles (high RPM / high temperature operation)

• Helps deliver sharp throttle response and clean acceleration feel (when correct grade is used)

• Outstanding gearbox protection (FZG gear test reported as FLS > 14)

• Two viscosity options in one listing: 10W-40 or 15W-50 (1L)

• Best suited for riders who do spirited street riding, long touring, heat-heavy traffic, or track-style use

• Do not mix with other oils for optimum engine/gearbox performance (Motul recommendation)

• Packed & shipped by Under The Hood (spares + service ecosystem) with careful handling to prevent leakage/damage

TECHNICAL SPECIFICATIONS

Variant A: Motul 300V Road Racing 10W-40 (1L)

• Brand: Motul

• Product line: 300V 4T Factory Line Road Racing

• Viscosity grade: SAE 10W-40

• JASO: T903:2023 MA2 (wet clutch tested)

• Density @ 20°C: 0.862

• Viscosity @ 40°C: 76.9 mm²/s

• Viscosity @ 100°C: 13.1 mm²/s

• HTHS @ 150°C: 4.2 mPa·s

• Pour point: -48°C

• Flash point: 234°C

• Pack size: 1L

Variant B: Motul 300V Road Racing 15W-50 (1L)

• Brand: Motul

• Product line: 300V 4T Factory Line Road Racing

• Viscosity grade: SAE 15W-50

• JASO: T903:2023 MA2 (wet clutch tested)

• Density @ 20°C: 0.869

• Viscosity @ 40°C: 119.0 mm²/s

• Viscosity @ 100°C: 18.1 mm²/s

• HTHS @ 150°C: 5.5 mPa·s

• Pour point: -45°C

• Flash point: 222°C

• Pack size: 1L

Recommended oil change: as per your usage / owner’s manual (Motul states “according to your own use”).

COMPATIBILITY SECTION

a) Confirmed Compatible Models

For engine oil, “fitment” is manual-spec based, not bike-name based. To avoid wrong purchases, we only “confirm” by specification:

Likely / Popular Retrofits (Check Before Ordering)

• Riders often “upgrade” to 300V for hard riding / heat / track-like use, but viscosity must match the manual. If unsure, share your bike model + manual viscosity spec with Under The Hood before ordering.

Not Compatible / Common Confusion

• Do not buy 15W-50 just because it sounds “higher performance.” Wrong viscosity can worsen cold-start flow or feel heavy if your engine is tuned for 10W-40. (Always follow manual.)

• Do not mix with other oils for “top-up experiments” if you want optimum engine/gearbox performance.

VARIANTS 

Shopify Variant option name: Viscosity / Pack

Variant values:

• 10W-40 (300V Road Racing) – 1L

• 15W-50 (300V Road Racing) – 1L

Who should choose what (simple decision rule):

• Choose 10W-40 if your manual says 10W-40.

• Choose 15W-50 if your manual says 15W-50.

WHAT’S IN THE BOX

• 1 × Motul 300V 4T (Chosen viscosity) – 1L bottle

INSTALLATION & MAINTENANCE NOTES

• Use a professional workshop if you’re not confident—incorrect drain/torque can cause leaks.

• Replace oil filter (if applicable) when changing to premium oil for best results.

• Do not mix with other oils for optimum performance.

• Check level after a short idle + cooldown, then top up carefully (avoid overfill).

• For hard riding: monitor oil level more frequently (high-RPM bikes can consume oil depending on condition and use).

FAQ 

Q1. Which is better for my bike—10W-40 or 15W-50?
Choose only what your owner’s manual specifies. This listing keeps both options because riders commonly search “300V” first and then select the correct viscosity.

Q2. Is Motul 300V compatible with wet clutch bikes?
Yes—Motul states wet clutch compatibility tested to JASO T903:2023 MA2 for these Road Racing variants.

Q3. Is this fully synthetic? What makes 300V different?
Motul positions 300V as an ester-based performance racing oil using ESTER Core® Technology for oil-film adherence and performance under stress.

Q4. Will it reduce engine harshness, gear notchiness, or high-RPM roughness?
Many riders feel improvement when (1) the engine is healthy, and (2) the correct viscosity is chosen. It also highlights gearbox protection via FZG gear test (FLS > 14).

Q5. Can I use 300V for daily city commuting?
You can, but 300V is engineered for high-performance use. If your riding is mostly relaxed commuting, Motul’s mid-tier lines may be more cost-effective; choose 300V when your usage justifies it.

Q6. Can I mix 300V with another synthetic oil?
Motul recommends avoiding mixing with other synthetic or mineral lubricants for optimum engine/gearbox performance.

Q7. What oil change interval should I follow?
Motul states oil change “according to your own use.” Practically, follow your owner’s manual and your riding severity (heat, RPM, traffic, track).

Q8. How do I avoid buying the wrong grade online?
Check your owner’s manual for the exact viscosity. If confused, message Under The Hood with your bike + manual spec before ordering.