How to Get More Miles & Less Waste from Your Classic’s Fuel - Without Changing a Thing

Owning a classic car isn’t just about getting from A to B—it’s about craftsmanship, heritage, and the pure joy of the road. But while your car’s engineering has stood the test of time, today’s fuels weren’t designed for it.
The challenge? Modern fuels burn differently from the blends classic engines were built for—causing more carbon buildup, reduced efficiency, and increased wear.
The good news? You don’t need to modify your engine or switch to expensive alternatives.
SulNOxEco™ is a 100% organic fuel conditioner that enhances the fuel you already use—helping your classic run cleaner, more efficiently, and with better long-term protection.
Three Key Benefits of SulNOxEco™
More Miles, More Savings
By improving how fuel burns, SulNOxEco has been shown to increase fuel efficiency by an average of 9% across global tests.
That’s like getting an extra tank for every 11 fill-ups—without changing your fuel.
A Cleaner Drive, Inside and Out
SulNOxEco reduces harmful black smoke and emissions by encouraging a more complete burn.
It also gently cleans away carbon deposits, helping your engine run smoother and more responsively.
Engine Protection for the Long Run
Modern fuels can offer less lubricity than the blends classic engines were designed for.
SulNOxEco improves lubricity by ~17%, reducing friction and helping protect fuel system components for longer engine life.
How It Works
SulNOxEco works through three distinct mechanisms to optimise fuel combustion, clean your engine, and reduce wear: