The Ultimate Guide to Oil Changes: Expert Advice from The Mechanics Tire & Auto

Modern gasoline engines use direct fuel injection, a technology designed to boost horsepower and improve fuel efficiency. While direct injection provides major performance benefits, it also creates a well-known problem: carbon buildup. Over time, carbon deposits can rob your engine of power, reduce fuel economy, and even lead to expensive repairs. The good news? A professional fuel service from The Mechanics Tire & Auto can remove carbon buildup and restore your engine’s original performance and fuel efficiency. Today, even major manufacturers like Ford and General Motors recommend a fuel system cleaning every 15,000–20,000 miles to prevent long-term issues. Let’s break down what this service does and why it matters. What Is Carbon Buildup in an Engine? Any time your engine burns fuel, carbon begins to collect inside. The process is similar to soot forming inside a chimney. Because of the high heat and pressure inside a modern engine, this carbon builds up quickly and repeatedly. These deposits stick to: Fuel injectors Intake valves Combustion chambers Pistons and rings And as the buildup grows, engine efficiency drops. How Carbon Buildup Affects Your Engine Modern engines are engineered with extremely tight tolerances. When carbon forms on critical components, those parts can no longer operate as designed. Fuel injectors are a common example. They’re built to spray a precise mist of fuel into the combustion chamber. If the injector tip becomes clogged with carbon: Fuel can’t atomize properly The engine must use MORE fuel to compensate Power and acceleration decrease Fuel economy drops Premature injector failure can occur (a costly repair) Left untreated, this buildup can lead to: Rough idle Hard starting Loss of horsepower Decreased MPG Engine misfires Increased emissions Long-term engine damage Why Your Vehicle Needs a Fuel Service A fuel system cleaning removes carbon deposits throughout the entire fuel and air pathway. When performed regularly, a fuel service can: ✔ Restore fuel economy ✔ Increase horsepower and throttle response ✔ Improve idle quality ✔ Prevent injector and valve damage ✔ Extend engine life ✔ Reduce long-term repair costs This service helps your engine run as efficiently as it did when it left the factory. What Happens During a Fuel System Cleaning At The Mechanics Tire & Auto, our technicians use advanced fuel system equipment from BG Products to safely clean the entire system. The process includes: Adding cleaners to the fuel tank Circulating professional-grade chemicals through fuel lines and injectors Removing carbon from intake valves, pistons, and combustion chambers Restoring proper fuel flow and spray pattern The system is designed to be both safe and effective, removing buildup from every component fuel touches. How Often Should You Get a Fuel Service? Carbon buildup can begin forming in just a few thousand miles. That’s why many manufacturers now recommend regular cleaning: General Motors: every 15,000 miles Ford: every 20,000 miles General recommendation: every 20,000 miles for ALL modern gasoline vehicles You should also schedule a fuel service if you notice: Decreased MPG Loss of power or acceleration Rough idle Hard starting Fuel Services at The Mechanics Tire & Auto Both of our locations use BG fuel system equipment, the same brand behind ACDelco and Ford Motorcraft fuel system cleaners. This allows us to offer dealership-level quality at a significantly lower cost—often over $100 less than the dealership. If you're experiencing reduced fuel economy or want to protect your engine from carbon buildup, we’re here to help. Book your fuel service appointment online or call us to speak with one of our friendly service advisors today.