Quick answer
The price of carbon cleaner products for engines varies, typically between £5/$7 to £30/$40 for DIY additives and sprays, with professional services costing more.
Detailed answer
Commercial carbon cleaners often come in different formulations—some for direct intake application, others as fuel additives—and vary in concentration. A small bottle might be enough for a single treatment, while a more expensive kit could include multiple steps or tools for thorough decarbonising. Brand reputation plays a role in pricing, as does the inclusion of extra features (like injector cleaning or lubrication). If you opt to have a mechanic handle it, expect additional labour charges. Overall, you can find budget-friendly options if your engine is mildly dirty, but for more severe cases, you might consider pricier, stronger products or a professional approach. Always follow dosage instructions—overdosing won’t clean better and can waste money or even cause harm. Compare product reviews and consult with trusted sources for the best match to your vehicle’s needs.
