Synthesis 2 Racing (Fully Synthetic)
Synthesis 2 Racing is one of a new range of fully synthetic lubricants, and has been developed to meet the exacting demands of Grand Prix racing. Synthesis 2 Racing is made from a variety of synthetic base stocks including N.H.C. Polyol Esters and Poly Iso Butylenes, but benefits from the inclusion of synthetics of a much larger molecular structure giving increased boundary lubrication and offering a wide buffer zone of protection.
Synthesis 2 Racing was developed with the assistance Professional Grand Prix riders. We believe we have succeeded in producing one of the most outstanding 2 stroke lubricants available anywhere.
Features
- Ultra low rates of wear
- High lubricity preventing oil induced piston seizures
- High shear stability even under the severest conditions
- Increased engine reliability
- No lacquer, gumming or ring sticking
- Ultra clean burning with little or no carbon deposits
- Excellent fluidity/pour point for use in wide range of temperatures
- Easy mixing
- Smokeless
CAUTION
- Synthesis 2 Racing must not be used with castor based oils.
- Synthesis 2 Racing will mix with leaded, unleaded, Avgas and Octane Boosters but not Methanol.
- Synthesis 2 Racing is not suitable for use in oil injection systems.
What we think:
The Rock Oil Synthesis 2 Racing is a high-performance fully synthetic 2-stroke premix oil, specifically engineered for race-tuned motocross, enduro, kart, and performance 2-stroke engines. It's trusted by serious racers and tuners for its clean burn, superior lubrication, and power-focused formulation.
✅ Key Features of Rock Oil Synthesis 2 Racing:
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Fully Synthetic Formula: Built for extreme engine conditions—high RPM, high heat, and aggressive riding.
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Excellent Lubrication: Offers very high film strength, protecting pistons, rings, and crankshaft components under heavy loads.
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Low Smoke / Clean Burn: Designed to minimize carbon build-up, which is crucial in performance 2-strokes to keep ports, rings, and power valves clean.
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Performance-Oriented: Optimized for maximum throttle response and engine efficiency. Often used in racing conditions where every bit of power counts.
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Premix Only: Not for oil injection systems. Must be manually mixed with fuel (typically 32:1 to 50:1 depending on engine builder recommendations).
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Standards Met: Usually exceeds or meets JASO FD / ISO-L-EGD, but confirm the exact certification on the bottle for your batch.
🆚 Comparison with Similar High-End 2-Stroke Oils
| Oil | Type | Pros | Cons |
|---|---|---|---|
| Rock Oil Synthesis 2 Racing | Full synthetic premix | Super clean burn, pro-level protection, top-tier for MX | Not injector-safe, premium price (~$25–30/L) |
| Motul 800 2T Factory Line | Ester-based full synthetic | Extreme high-RPM protection, race proven | Heavy odor, slightly dirtier burn |
| Maxima Castor 927 | Castor/synthetic blend | Superior film strength, great for air-cooled engines | Can gum up if left unused, not as clean |
| Bel-Ray H1-R | Full synthetic | High protection, good throttle response | Slightly thicker, more residue than Rock Oil |
| Amsoil Dominator | Full synthetic | Clean burning, high RPM protection, consistent | Not always available in retail stores |
| Red Line 2-Stroke Racing Oil | Full synthetic | Low friction, good protection | Slightly more smoke than Rock Oil Synthesis 2 |
🔍 Ideal Use Case:
Choose Rock Oil Synthesis 2 Racing if:
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You run a high-performance 2T engine (e.g., motocross, enduro, race kart).
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You need consistent throttle response, clean internals, and maximum top-end protection.
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You premix your fuel manually (not for injector-fed engines).
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You value low residue and carbon build-up, especially for power valve longevity.
🛠️ Premix Tips:
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Common ratios: 40:1 or 50:1 depending on manufacturer specs.
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Always shake the fuel container after mixing.
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Ideal for use in KTM, Yamaha YZ, GasGas, Husqvarna, etc., race 2-strokes.