Automotive additive designed to raise cetane, maximise performance and help improve fuel economy for diesel engines. Peace of mind for drivers who want crisper starts and steadier throttle response on every journey. Is Redex Diesel Booster worth a regular place in the tank?
⚡ At a Glance
- • Cetane Increase: Manufacturer claims an increase in cetane number by up to 2, improving ignition quality
- • Best for: Owners of diesel cars and vans seeking steadier starts and recovered MPG
- • Not ideal for: Petrol engines or those wanting additives focused on injector cleaning rather than cetane boost
Specialist cetane booster designed for direct addition into the fuel tank. Suitable for all diesel engines, intended to help maximise performance and potentially improve fuel economy.
Improved Combustion and Throttle Response - thanks to raised cetane number
Higher cetane shortens ignition delay so fuel ignites more promptly and burns more completely. Manufacturer materials state cetane can increase by up to two points with regular use.
Crisper cold starts and smoother acceleration under load, particularly noticeable in heavier vehicles and colder conditions.
Potential Fuel Economy Gains - with lab-designed combustion optimisation
Formula is described as lab designed to maximise performance, aiming to reduce unburnt fuel through more efficient combustion. Efficiency gains depend on engine condition and driving patterns.
Using a recommended shot at refuelling can help recover falling miles per gallon between fill-ups, making refuelling routines more productive.
Simple, Universal Application - with a ready-to-pour diesel formulation
Suitable for all diesel engines and supplied in a ready-to-use liquid form that pours straight into the fuel tank. Manufacturer recommends a shot per tank and allows use as often as required.
Easy to fit into regular maintenance, requiring no special tools or workshop visit, so improvements can be achieved during routine refuelling.
✨ The 4 Key Reasons for Redex Diesel Booster
- Easy Add-in Application - Pour into tank, one shot per refill saves time
- Universal Diesel Compatibility - Works with all diesel engines, no special handling required
- Potential MPG Recovery - Helps restore falling miles per gallon between fill-ups
- Compact 250ml Bottle - Handy size for a single recommended shot per tank
📋 Technical Details at a Glance
- Category: Automotive additive
- Brand: Redex
- Primary function: Cetane booster
- Claims: Can increase cetane number by up to 2
- Volume: 250ml
❓ Frequently Asked Questions
Q: How do I use this additive?
A: Pour the liquid directly into the fuel tank, with a recommended shot in each tank and the option to use as often as required.
Q: Will it work with any diesel engine?
A: Yes, the formulation is described as suitable for all diesel engines.
Q: How much will the cetane rating change?
A: Manufacturer information states the cetane number can increase by up to 2 points.
🏆 Our Verdict
The Redex Diesel Booster is suitable for diesel car and van owners who notice sluggish cold starts or falling MPG. A lab-designed cetane booster that promises up to a two-point cetane increase and simple in-tank application. Compact packaging and straightforward use make it a low-effort maintenance step that can deliver steadier performance and potential fuel-economy benefits over time.
