Diesel engines have more benefits than drawbacks, but they can only keep delivering on them if you keep up with maintenance. You should leave most major changes and repairs to an experienced mechanic, but for the most part, looking after your diesel engine is easy. Here’s a quick guide to diesel engine maintenance to keep your vehicle running smoothly for years to come.
Perform Regular Oil Changes
If you want to ruin an engine, neglect oil and oil filter changes. So stay on top of these tasks, especially because diesel engines generate more soot and particulates than gasoline engines. This leads to more grit and grime in the engine, impeded performance, and eventual engine failure. Follow your manufacturer’s recommendations in the owner’s manual about the best type of oil to choose and how often you should change it to ensure optimal performance.
Monitor Coolant Levels
Coolant is vital—it prevents your engine from overheating, which leads to poor performance and eventual engine failure. Periodically check your coolant levels and top the fluid off as needed. Once in a while, flush the radiator and replace the coolant according to schedule. Again, your owner’s manual or mechanic should know how often to do this. This practice prevents corrosion and keeps the cooling system functioning well.
Replace Fuel Filters
First, buy only the best diesel fuel from a reputable dealer. Diesel engines rely on clean and pure diesel fuel to run smoothly. Contaminants lead to clogs that damage the engine.
Additionally, stay on top of fuel system maintenance and replace the fuel filters as necessary. Most diesel engines have two fuel filters—a primary and a secondary. Check and replace them periodically.
Inspect the Air Filter
Your engine needs to breathe just as much as you do. Make sure it’s breathing only clean air by staying on top of air filter replacement. A clean air filter maintains the right air-to-fuel ratio in your engine. Conversely, dirty air filters restrict airflow, reducing engine efficiency and performance. Inspect your air filter regularly and replace it when it becomes dirty or clogged.
Eye the Exhaust System
Diesel engines produce more exhaust than gas engines, which leads to soot and particulate buildup in the exhaust system and creates back pressure. Regularly inspect the system for leaks, damage, or excessive soot buildup. Keeping the exhaust system clean, once again, maintains engine efficiency and reduces harmful emissions.
You might also consider installing a performance exhaust system, which is one of the best diesel upgrades on a budget and will further alleviate back pressure. This upgrade will also sustain your engine even better between scheduled maintenance.
Maintain the Battery
Diesel engines require more power to start, especially in cold weather. Keep your battery in good stead by periodically checking the connections, cleaning any corrosion, and testing the charge. Replace the battery if it shows signs of weakness or age.
That’s a quick guide to diesel engine maintenance. Maintaining your diesel engine doesn’t have to be complicated. By following these simple steps, you can ensure your engine stays in top condition.
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