Technical Addendum: Oil Specifications Decoded
1. JASO MA2 vs. API SN+
| Standard | Focus | Motorcycle Relevance |
|---|---|---|
| JASO MA2 | Wet clutch compatibility | Prevents slippage (μ=0.10–0.18) |
| API SN+ | Car engine protection | Lacks shear stability for gears |
Lab Data: MA2-certified oils retain 90%+ friction efficiency after 20k shifts (IP 575 test).
2. Viscosity Index (VI) Matters
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TERZO 10W-40: VI=180 (Stable -25°C~150°C)
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Mineral 10W-40: VI=140 (Thickens below -15°C)
Field Test: Synthetic flows 3x faster at -20°C (ASTM D5293).
Rider Scenario Matrix
| User Type | Oil Choice | Critical Parameters |
|---|---|---|
| Adventure (GS1200) | TERZO 15W-50 | VI>190, HTHS>4.0 cP (SAE J300) |
| Track (R1) | Motul 300V 5W-40 | Shear loss<10% (ASTM D6278) |
| Urban (CB500X) | Shell Advance 10W-30 | Fuel economy + JASO MB兼容 |
Cost-Benefit Analysis
| Oil Type | Price/L | Engine Life Impact | TCO/50k km |
|---|---|---|---|
| Premium Synthetic | 18 | 200k+ km reliability | $1,200 |
| Budget Mineral | 10 | 120k km rebuild risk | $2,800+ |
| Note: Includes oil changes, filter costs, and engine wear. |
Anti-Counterfeit Checklist
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Holographic Labels: GENUINE TERZO oils have laser-etched batch codes.
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Viscosity Verification: Cross-check kinematic viscosity at 100°C
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Retailer Audit: Only select brand authorized dealers (available on the official website).
Expert Tip: Oil Change Algorithm
IF (Track Days >5/year) OR (Ambient Temp Δ>40°C)
USE Synthetic + 25% Shorter Interval ELSE IF (Mileage <3k km/year)
USE Mineral + Annual Change
