Engine-system cleaner designed to remove harmful deposits from EGR and carburettor systems and help restore engine responsiveness. Ideal for DIY mechanics and workshops who want smoother idling and crisper throttle response. Is Holts EGR & Carb Cleaner Spray the right maintenance choice for your petrol or diesel vehicle?
⚡ At a Glance
- • Cleaning Power: Powerful formula dissolves varnish, gum and soot deposits in engine passages
- • Best for: DIYers and garage technicians tackling sticky EGR valves and clogged carburettors
- • Not ideal for: Applications outside EGR and carburettor cleaning or delicate surface cleaning
Powerful professional formula targets carbon, varnish and gum in EGR and carburettor passages. A 360° spray valve helps reach awkward ports and passages.
Restore throttle response and idle quality – with a professional-grade cleaning formula
Powerful cleaning chemistry breaks down varnish, gum and soot deposits that accumulate in EGR systems and carburettors. Aggressive action clears flow passages that can restrict airflow or cause valve sticking.
Cleaner passages lead to improved throttle response and more stable idling, making everyday driving smoother and reducing hesitation under load.
Access tight passages and ports – with a 360° spray nozzle
A 360° valve allows spraying upside down and at odd angles to reach EGR ports, valve bores and carb jets without full disassembly. The spray pattern helps distribute cleaner into hidden crevices.
Reach awkward areas without major stripping, saving workshop time and reducing labour for routine maintenance or troubleshooting.
One cleaner for petrol and diesel systems – with a versatile formulation
Formulated to remove petrol residues from carburettors and carbon from recirculated exhaust gases in diesel EGR systems. Suitable for use where soot and fuel residues cause build-up.
Useful for mixed fleets and home garages, providing a single maintenance product for both petrol and diesel engine breathing systems.
✨ The 4 Key Reasons for Holts EGR & Carb Cleaner Spray
- Professional-grade formula — Restores throttle response and reduces rough idling quickly
- 360° spray nozzle — Reaches tight EGR ports and carburettor jets, sprays upside down
- Removes soot and varnish — Clears carbon and fuel deposits that clog passages and valves
- Prevents valve sticking — Keeps EGR valves moving freely to maintain drivability and emissions control
📋 Technical Details at a Glance
- Category: Automotive Parts & Accessories
- Brand: Holts
- Application: EGR systems and carburettors
- Volume: 500ml
- Spray type: 360° spray nozzle (sprays at any angle)
❓ Frequently Asked Questions
Q: Can this cleaner be used on both petrol and diesel engines?
A: Yes, the formula is suitable for petrol carburettors and for removing carbon in diesel EGR systems, so it covers both engine types.
Q: Will the spray reach awkward or upside-down areas?
A: Yes, a 360° spray valve allows access to tight passages and upside-down spraying for hard-to-reach EGR ports and carb jets.
Q: Will cleaning with this spray help with sticky EGR valves?
A: Yes, the cleaner is designed to remove deposits that cause EGR valves to stick, helping to restore proper valve movement and drivability.
🏆 Our Verdict
The Holts EGR & Carb Cleaner Spray is well suited to DIY mechanics and garages that need a reliable way to clear carbon, varnish and gum from EGR systems and carburettors. A professional-strength formula combined with a 360° nozzle makes it effective at restoring throttle response and preventing valve sticking. Excellent long-term value for routine maintenance and keeping older engines performing more reliably.
