REDLINE DIESEL ADDITIVES SAVE FUEL WHY THEY WORK
REDLINE DIESEL ADDITIVES SAVE FUEL
Diesel engines are brutally efficient machines — but they’re also unforgiving.
Poor fuel quality, injector deposits, cold starts, and low‑lubricity modern diesel all chip away at power and reliability. That’s where Red Line’s diesel additives step in.
Engineered formulas that solve real mechanical problems, not marketing ones.
This guide breaks down why they work, what they fix, and how RL‑2 and 85 Plus complement each other for NZ drivers, tradies, and diesel fleet operators.
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Modern Diesel Has a Lubricity Problem
The Lubricity Problem
Ultra‑low sulphur diesel (ULSD) protects the environment, but it strips away natural lubricants. The result:
- accelerated injector wear
- rough idle
- harder cold starts
- reduced fuel economy
Red Line’s additives restore the lubricity that ULSD removed — safely and consistently.
What RL‑2 Diesel Ignition Improver Does
“Faster ignition • Less white smoke • Cleaner injectors.”
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RL‑2 is the heavy‑hitter for cold starts, ignition quality, and injector cleanliness.
Faster ignition. Less white smoke. Cleaner injectors. RL‑2 is the additive you use when your diesel needs to fire clean and run smooth — especially in winter or under load.
Designed for your heavy machinery and large vehicles with noticeable increase in power and performance.
Key benefits:
- Improves cetane for faster, cleaner ignition
- Reduces white smoke on cold starts
- Cleans injector tips and internal deposits
- Adds high‑grade lubricity to protect pumps and injectors
- Stabilises fuel during storage
- Less burn off time in heavy machinery like earthmovers.
Perfect for: cold climates, older diesels, hard‑working utes, and anything that struggles to fire cleanly.
Testing on a IVECO monitored engine in a real-world transport operators vehicle showed an 8.2% fuel savings, more power and smoother idling.
💪 What 85 Plus Diesel Fuel Enhancer Does
85 Plus is the everyday workhorse — ideal for NZ’s mixed diesel quality and stop start driving.
Key benefits:
- Cleans injectors and combustion chambers
- Restores lost power
- Improves throttle response
- Boosts fuel economy
- Reduces soot and smoke
- Protects against corrosion
- One bottle will remove up to 75 mls of water from the fuel system
Perfect for: daily drivers, fleets, couriers, tradies, and anyone wanting smoother, more efficient running.
Together, they cover the full spectrum of diesel problems.
🛠️Real‑World NZ Benefits
New Zealand’s diesel supply isn’t uniform. Seasonal blends, and variable storage conditions mean your fuel quality can change from one tank to the next. Add in NZ’s hilly terrain, towing loads, and short‑trip driving — and you’ve got a recipe for soot buildup, injector fouling, and cold‑start stress.
The Problem
- More soot: Heavy loads and short trips prevent full combustion.
- More injector fouling: Variable cetane levels and inconsistent fuel quality clog precision injectors.
- More cold‑start stress: Low ambient temperatures and fuel dilution reduce lubrication.
- More fuel dilution: Unburned diesel washes down cylinder walls, thinning oil and accelerating wear.
The Solution
Red Line’s diesel additives — RL‑2 Diesel Ignition Improver and 85 Plus Diesel Fuel Enhancer — are engineered to counter these exact conditions. They clean injectors, stabilize combustion, and restore lost efficiency without relying on harsh solvents or filler chemistry.
Mechanic’s Verdict
That’s why NZ diesel shops keep Red Line on the shelf — it’s proven chemistry, not marketing hype.
Real‑World Results — Diesel That Runs Cleaner, Quieter, Stronger
Everyday Impact
Drivers who use RL‑2 and 85 Plus consistently report:
- Easier cold starts
- Smoother idle and throttle response
- Noticeably quieter operation
- Reduced smoke and soot buildup
- Measurable fuel savings (typically 3–10%)
Why It Works
Red Line’s ester‑based formulas lubricate injectors and improve atomization, ensuring cleaner combustion and less carbon residue. They also protect against corrosion and fuel system wear — critical for older diesels and high‑load applications.
Final Takeaway
If you want your diesel to run cleaner, quieter, and stronger, RL‑2 and 85 Plus are two of the most effective tools you can add to your maintenance routine. They’re not snake oil — they’re chemistry that solves real mechanical problems.
We think our FUEL SYSTEM WATER REMOVER is special.
By lubricating both the water and fuel phases, it helps protect and prolong the life of injection pumps and fuel-system components. Fleet dynamometer tests have even indicated a 2–3% improvement in engine efficiency due to the friction-reducing effects of the lubricant.
Concentrated Efficiency:
Red Line’s additive is highly concentrated, meaning a small volume (one bottle treats 1000 litres) goes a long way. This concentration not only makes it cost-effective but also ensures that even heavy contamination scenarios can be managed without overloading the fuel system.
• Red Line Fuel System Water Remover & Antifreeze excels with its dual functionality:
o Water dispersion: It breaks water into tiny droplets, ensuring the water does not freeze or cause clogs.
o Freeze protection: It lowers the freezing point of water in the fuel, crucial for cold climates. o Enhanced lubrication: It protects fuel pumps and injectors, potentially boosting engine efficiency.
o Concentration: Its ability to treat large volumes of fuel with minimal additive makes it both effective and economical.
This product won’t settle in tanks and stays in suspension without agitation. For anyone with an on-site storage tank this product is a must have.