Get advice from our specialists to make sure you’re choosing the right part for your vehicle and setup.
$45.00 NZD
Get advice from our specialists to make sure you’re choosing the right part for your vehicle and setup.
Redline 85 Plus Diesel Fuel Additive is a diesel fuel catalyst. It combines detergency, lubricity, and faster combustion in one bottle. Mechanics favor it because it compensates for today’s low-sulfur diesel fuels. One bottle treats up to 100 gallons, so it’s an easy addition to your regular fuel-up routine.
Powerful high-temperature detergents in this additive clean fuel injectors and keep them clean. It also lubricates O-rings and seals, which extends injector pump life and reduces ring friction. A cetane booster improves ignition speed and combustion efficiency, so engines run with less detonation and less smoke. As a result, drivers often notice smoother running and better throttle response after just one treatment. Cleaner injectors also help maintain fuel economy over time, especially in older or high-mileage diesel engines.
Redline 85 Plus Diesel Fuel Additive works in all diesel engines and meets federal low-sulfur fuel requirements. Because diesel fuel specifications keep changing, Red Line regularly reformulates this additive rather than releasing entirely new products. This approach keeps it effective against the latest fuel blends without changing how you use it. It’s also compatible with modern common-rail and older mechanical injection systems alike.
This 12oz bottle suits a single tank treatment, while a Gallon size is available for fleets or frequent use. A winterized formula is also available, and it drops the fuel’s pour point by around 25°F for reliable cold-weather starts. Redline has built its reputation on performance lubricants and additives for decades. This diesel catalyst carries that same quality standard. Not sure which diesel additive suits your vehicle? Get in touch and we’ll help you choose. For full technical details, see Redline’s official product page.
