Red Line 85 Plus! Diesel Fuel Catalyst & Cetane Booster – 12 oz

Restore power, protect your fuel system, and maximize efficiency with Red Line 85 Plus! Diesel Fuel Catalyst. Engineered for all diesel engines — especially those running modern ultra-low sulfur diesel (ULSD) — this concentrated 12 oz additive compensates for the reduced lubricity and cetane levels inherent in today's cleaner fuels. Whether you're maintaining a daily driver or pushing a performance diesel, 85 Plus! delivers measurable gains in power, cleanliness, and component longevity.

The professional mechanic's choice for a powerful combination of detergency, lubrication, and cetane enhancement — one bottle treats up to 25 gallons at a cleaning dose or up to 100 gallons at a maintenance dose.

Key Features

• Cetane Boost for Power: Powerful cetane improvers raise the fuel's cetane number by 5 to 9 points, delivering faster ignition, more complete combustion, and up to 5% additional power and efficiency
• Injector & System Cleaning: High-temperature detergents thoroughly clean fuel injectors and vital fuel system components, restoring lost power and fuel economy
• Superior ULSD Lubrication: Adds critical lubricity to ultra-low sulfur diesel fuel, reducing wear on fuel pumps and injectors by up to 75% and extending component life
• Reduces Smoke & Detonation: Improved burn rate minimizes engine detonation, assists cold starting, and reduces exhaust smoke
• High-Concentration Formula: Treats up to 25 gallons (cleaning dose) or up to 100 gallons (maintenance dose) per 12 oz bottle
• Universal Diesel Compatibility: Suitable for all diesel engines including passenger vehicles, light trucks, and equipment running ULSD fuel

Specifications

• Type: Diesel Fuel Catalyst & Cetane Booster
• Size: 12 oz
• Cetane Improvement: 5–9 points
• Lubricity Improvement: Up to 75% wear reduction
• Treat Rate: Up to 25 gal (cleaning) / up to 100 gal (maintenance)
• Part Number: 70802

Note: Verify compatibility with your specific diesel engine and fuel system before use. Follow Red Line's recommended treat rates for your application.