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    Can Additives Save You Money? How Motul Treatments Work

    1 week ago

    By this point, you know Motul’s NGEN Core oils can come from re-refined base stocks and still meet modern performance standards, and you’ve seen how that stacks up in performance and modified cars. The next piece of the puzzle is the stuff in the smaller bottles: fuel and oil additives. These cleaners, boosters and treatments are often sold alongside NGEN oils, especially in “pre-MOT” bundles and service packages for UK garages. The big question is whether they genuinely save money – in fuel, repairs or emissions retests – or just make the receipt longer. In broad terms, Motul’s additives fall into a few two main groups: those you add to the fuel system, and those you add to the oil system. These are added to petrol or diesel tanks and designed to do the following jobs: Motul also offers “pre-MOT emission solutions” that package these cleaners together as part of a service upsell – ideal for cars at risk of failing emissions. Again, there are many additives available, each one designed to do a different job. But, generally speaking, the two types that Fast Car fans will find most useful are: These products have to be compatible with modern low-SAPS oils and aftertreatment systems; using something not designed for DPF/GPF cars is a fast way to buy a new filter you didn’t plan on. If there’s one thing modified car fans and tuners are always looking for, it’s extra power and performance. And that’s exactly what octane boosters and cetane improvers provide.  Octane boosters work in petrol engines, and help suppress knock in marginal fuel situations or mildly uprated engines. Always handy to have a bottle in the glovebox in case you get caught short and can’t fill up with Super Unleaded anywhere! Cetane improvers do the same thing for diesels. They help ensure smooth combustion, reduce noise, and sometimes help with cold starts and soot too. Used correctly, these support calibration targets and can reduce the likelihood of knock or rough running when fuel quality is poor. NGEN Core is all about the base oil story – recycled content, lower carbon, PCR packaging – but once it’s blended, it’s still a modern, additive-rich lubricant. Additives in separate bottles sit around that system rather than replacing it. If you’re moving a tired but saveable engine onto a fresh NGEN grade, an engine flush and a tank of fuel system cleaner can be a smart once-off investment. The flush helps dissolve old deposits so the fresh RRBO-based oil isn’t immediately contaminated with legacy sludge. The fuel cleaner helps stabilise combustion and can reduce blow-by and soot, helping your new oil stay cleaner for longer. For example, a 120k-mile BMW N52 that’s been on cheap supermarket oil and short journeys might benefit from a careful flush, fresh NGEN oil (with the correct BMW approval) and a fuel cleaner, followed by shorter initial intervals to let the system stabilise. We all know the fear that an MOT emissions test can fill us with. And if your car is flirting with MOT limits or throwing occasional DPF regen issues, Motul’s “pre-MOT emission solutions” bundles make a lot of sense. Combined with a high-quality NGEN oil that meets the right ACEA low-SAPS category, the right additives can: That’s a direct financial saving if it lets you skip a re-test fee or a premature DPF clean. For highly-tuned or hard-driven cars, regular use of carefully chosen additives can really help you keep on top of your engine’s health. If you’re pumping extra amounts of fuel through injectors (or using exotic ethanol blends), a fuel system cleaner can really help keep injector patterns sharp – crucial for optimal performance. A clean engine is a happy engine. Unwanted deposits on the pistons can cause everything from poor performance to catastrophic LSPI events. Using an engine flush washes these out with every oil change to keep your internals fresh. Finally, we know the importance of fuel octane ratings. There’s a high likelihood your car’s been mapped to run on premium (97-99RON) fuel. Filling up with lower octane fuel is just asking for detonation. That’s where a top-up can of octane booster can really save your wallet! Used alongside NGEN Core oils that already meet API SP and relevant ACEA categories, this is about maintaining the performance envelope you’ve paid for, not chasing mythical gains. Additives are most likely to pay for themselves when: In these cases, the combination of NGEN oil (lower carbon, high performance) and the right additive can give you a lower total cost of ownership and a better sustainability story. Additives are unlikely to save you money when: In those scenarios, you’re just spending extra to mask the symptoms of an underlying issue. There’s no magic fix, and you simply need to spend the money of fixing the problem. A few hard rules if you’re pairing additives with NGEN Core oils: Use additives as targeted tools, not lifestyle accessories. If you’ve got a specific problem to solve, or you’re prepping a car for a long and hard life on Motul NGEN oils, the right fuel and oil additives can absolutely save money on fuel, repairs and MOT drama. But the foundation is still the oil in the sump. Get the right NGEN grade, with the right OEM approvals, then layer additives on top for clearly defined jobs – not because the counter guy said it was “good stuff, mate”.
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