Red Line 4-Cycle Alcohol Fuel Lubricant - 12oz. - 41102

The Red Line 4-Cycle Alcohol Fuel Lubricant (12oz, Part #41102) is a purpose-built fuel additive designed for racing engines running methanol, nitromethane, or E85-based fuels. Alcohol and dry fuels are notorious for washing away the protective oil film on cylinder walls and valves — Red Line's formula steps in to restore that lost lubrication, protect critical upper-cylinder components, and even deliver measurable power gains on the dyno. If you're running an alcohol-fueled 4-cycle race engine in any class, this additive addresses a real and often overlooked source of wear and power loss.

Key Features & Benefits

• Prevents Gelling and Corrosion: Formulated to protect methanol and nitromethane fuel systems from internal corrosion and fuel gelling — two common failure points for engines that sit between race events or run in varying temperature conditions.
• Restores Upper Cylinder Lubrication: Alcohol and dry fuels wash engine oil films off cylinder walls and valve stems. Red Line Alcohol Fuel Lube replaces that lost lubrication, directly reducing upper cylinder and valve wear during high-RPM race use.
• Measurable Power Increase: Independent dyno testing showed a 1.5% increase in torque when using 1 bottle with 20 gallons of race gas — with similar or greater improvement expected with straight alcohol fuels, thanks to improved ring seal.
• Improves Ring Sealing: Better ring seal means more combustion pressure stays where it belongs — above the piston — which translates directly to more consistent power output.
• Not Detectable by Normal Fuel Tests: Designed so it will not interfere with standard racing fuel testing protocols, making it suitable for use in sanctioned competition.
• Easy to Mix: Mixes with only slight agitation, so there's no complex prep process at the track or pit area.
• Suitable for Multiple Alcohol Fuel Types: Compatible with E85, methanol, and nitromethane-containing fuels — covering a wide range of racing and performance applications.
• Economical Treatment Rate: Use just 1 oz per 5 gallons of fuel. One 12oz bottle treats up to 55 gallons, stretching your budget across multiple race events.

Specifications

• Brand: Red Line Synthetic Oil
• Part Number: 41102
• SKU: RED41102
• UPC: 083522411226
• Size: 12 oz bottle
• Treatment Rate: 1 oz per 5 gallons of fuel
• Bottle Treats Up To: 55 gallons
• Compatible Fuels: Methanol, nitromethane, E85
• Package Weight: 10 lbs
• Package Dimensions: 11 × 9 × 8 in

Fitment

This product is a fuel additive for 4-cycle (4-stroke) engines running alcohol-based fuels including methanol, nitromethane, and E85 blends. It is widely used across karting, stock car racing, bracket drag racing, and other motorsport applications where alcohol fuels are the primary fuel source. It is not for use with catalytic converters — if your vehicle is equipped with a cat, do not use this product. This is not a street-fuel additive and is intended for race/performance applications with compatible alcohol fuels.

What's in the Box

• 1 × Red Line Alcohol Fuel Lubricant — 12oz bottle (Part #41102)

Why Buy from ThreePiece.us

ThreePiece.us has been serving performance and racing enthusiasts since 2014, with over 10,000 customers and a team that knows racing-spec products inside and out. When you order the Red Line 41102 Alcohol Fuel Lubricant here, you get:

• Free Shipping on every order — no minimum required.
• Affirm Financing available at checkout — break up your performance parts purchases into manageable payments.
• Expert Support: Have questions about whether this additive is right for your fuel system or racing class rules? Our team is reachable at sales@threepiece.us or by phone — we're here to help you make the right call before you order.
• Price Match Guarantee on all products — if you find a lower price, reach out and we'll work with you.

Frequently Asked Questions

Q: How much Red Line Alcohol Fuel Lube do I use per tank?
A: The recommended treatment rate is 1 oz per 5 gallons of alcohol fuel. One 12oz bottle treats up to 55 gallons total, so a single bottle will last across multiple fuel fills or race events depending on your tank size and how often you refuel.

Q: Can I use this additive in a vehicle with a catalytic converter?
A: No. Red Line explicitly states this product should not be used with catalytic converters. It is formulated for dedicated race engines and performance applications running methanol, nitromethane, or E85 without emissions equipment.

Q: Will this product cause me to fail a fuel test at a sanctioned race event?
A: According to Red Line, the Alcohol Fuel Lube is not detectable by normal fuel tests and will not interfere with most standard racing fuel testing protocols. However, always verify with your specific sanctioning body and ruleset before race day, as rules vary by series and class.

Q: Does this product work with E85, or only with straight methanol and nitromethane?
A: Yes — Red Line lists this product as suitable for use with E85, methanol, and nitromethane-containing fuels, making it versatile across a range of alcohol and alcohol-blend racing applications.