They might be nestled between oil additives and those bottles of goo ... on the backsides of intake valves and throughout an engine’s combustion chamber. “The result [of this] is loss of ...

DPF cleaner will help make it easier for the car to remove its own blockages. However if you've not had any issues so far it's because you're doing the longer journeys needed to clean the DPF.

Still, be aware that good-quality brandy won't be dirt cheap. "If you enjoy a clean, additive-free brandy, know that it typically takes about 30 pounds of fruit to create just one bottle of brandy ...

What is a fuel additive? You might be thinking that fuel injector cleaners fall into this category, and you’d be very correct. However, things like diesel injector cleaners are one arm of the fuel ...

Of course, good engine oil is even more essential, but keeping the petrol system clean is equally so. Over time, carbon deposits build up in an engine, requiring treatment with a good fuel additive.

"Is it recommended to rotate the tyres on my car? And if so, at what intervals?" ...

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