Klotz BeNOL Premix Castor Oil for 2‑Stroke Racing Engines — 1 Gallon (BC‑171), High-Performance Reduced Smoke

Klotz BeNOL Pre-Mix Castor Oil (1 gallon, BC-171) is a high-performance, highly refined castor-based lubricant formulated specifically for premix two-stroke racing engines.

Built from premium castor base stocks and fortified with anti-wear chemistry, BeNOL delivers a tenacious lubricating film, reduced smoke burn, and improved throttle response for high-output two-stroke motorcycles, ATVs, karts, and watercraft. This premix-only formula blends readily with methanol, ethanol, nitromethane, and gasoline, and is tailored to meet the demands of modern racing engines operating at high temperatures and RPMs.

How does Klotz BeNOL protect high-revving two-stroke engines?

BeNOL is engineered to maintain a strong lubricating film under extreme pressure and heat, preventing metal-to-metal contact that leads to scuffing and premature wear. Its de-gummed, fortified composition increases load-carrying capacity so bearings, piston rings, and critical surfaces stay protected during race conditions.

• Double the film strength versus conventional castor oils for superior boundary lubrication.
• Anti-wear additives to reduce scuffing and extend component life.
• Clean-burn technology that minimizes carbon deposits on rings and ports.

Will BeNOL mix with my fuel and how should it be metered?

BeNOL is compatible with common two-stroke fuels and alcohols, making it suitable for a wide range of racing fuels. It is formulated strictly for premix applications and should not be used in oil-injection systems; follow manufacturer ratios or the guideline ranges for engine types.

• Mixes with methanol, ethanol, nitromethane, and gasoline without separation.
• Suggested premix ratios: Air-cooled 20:1–32:1; Water-cooled 32:1–50:1.
• Racing kart 16:1–20:1; 2-stroke glow 15–18%; 4-stroke glow 5–10%.

What performance differences can riders expect on track?

Racers will notice a smoother throttle response, cleaner combustion, and reduced smoke compared with older castor blends. The fortified chemistry helps maintain compression and ring seal longer, supporting consistent lap times and reliable power delivery during extended runs.

• Lower visible smoke while preserving castor’s lubrication benefits.
• Reduced carbon buildup for more consistent performance between services.
• Improved throttle feel and faster engine recovery under load.

Is BeNOL environmentally considerate or biodegradable?

Castor oil is a renewable, biodegradable base stock, and Klotz BeNOL uses highly refined castor foundations to balance performance with environmental considerations. While more biodegradable than many mineral oils, BeNOL is still a concentrated lubricant and should be used and disposed of responsibly per local regulations.

• Made from biodegradable castor base stocks.
• Formulation reduces unburned residues through cleaner combustion.
• Follow local guidelines when storing, disposing, or recycling used fuel and oil mixtures.

Who is this for: Klotz BeNOL Pre-Mix Castor Oil (1 gallon, BC-171) is aimed at racers, mechanics, and serious enthusiasts running premix two-stroke engines—especially off-road bikes, ATVs, karts, micro-sprints, and personal watercraft—that demand durable lubrication, low-smoke combustion, and consistent performance under high RPM and temperature conditions. If your machine specifies premix lubrication and you prioritize protection and throttle response during competition, BeNOL is engineered to meet those needs.