OptiFuel Optimix 5% (5L) is specifically formulated for RC engines that require low nitromethane content, making it ideal for beginners, trainers, and scale modellers. With 5% Nitromethane and 18% fully synthetic oil, this fuel provides a clean, consistent burn, excellent lubrication, and reduced engine wear — perfect for long training sessions or less aggressive setups.

Whether you're breaking in a new engine or flying an aircraft designed for low-nitro mixes, Optimix 5% delivers smooth, stable power with reduced smoke and residue. Supplied in a true 5-litre container, you get more fuel than standard US gallon sizes.

Key Features:

• Formulated for engines needing low nitromethane

• Ideal for beginners, training, and light-duty use

• 5% Nitromethane for smooth, stable performance

• 18% fully synthetic oil for enhanced engine protection

• Clean-burning with low smoke and residue

• Full 5-litre bottle – more value than 3.78L US gallons