How Often Should You Service A Diesel Car?

The recommended service interval for most diesel vehicles is every 3,000 miles or 6 months, whichever comes first. However, depending on the type and model of your automobile, as well as how much you drive, this service frequency might vary dramatically. Short-distance driving on a frequent basis can cause oil in diesel cars to quickly acquire sludge or other impurities. It might be difficult to know when your car needs to be serviced.

So how often should a diesel car be serviced? Here are five key signs that a service is due on your diesel car.

  • It’s difficult to get started. Low compression or a fuel delivery issue might cause difficult or delayed starting. When you start a diesel engine, it’s common for it to crank a little, with a typical crank time of 3 to 5 seconds. Have your diesel car checked out as soon as possible if crank times are particularly long if the engine is exceedingly difficult to start.
  • Smoke is billowing. Keep an eye out for smoke coming from the exhaust pipe that has an unpleasant odor. You should be on the lookout for three hues of smoke: black, blue, and white. These emissions could indicate a defective injector, injector pump, clogged air filter, or other engine or sub-system issue.
  • Inability to perform. This could be a sign of low fuel pressure, clogged fuel filters, or something more serious. If your diesel vehicle is underperforming, bring it in to get dynamometer checked to discover the actual power at the wheels and compare it to what it should be.
  • Knocking. Knocking can be an indicator of the engine’s age, but it doesn’t always mean there’s a problem. However, in the worst-case scenario, it could suggest fuel contamination or malfunctioning diesel injectors, affecting compression balance and lowering performance.
  • Running in the woods. This is a common symptom of a faulty glow plug or a faulty fuel injection system, resulting in difficult starting and rough running until the engine reaches operating temperature.

Remember: Having your diesel automobiles inspected and serviced on a regular basis is the best way to guarantee they are in good working order.

How often do diesel cars need servicing?

Car manufacturers propose service intervals based on mileage or time, such as every 15,000 miles or every 24 months. Only if you haven’t achieved the mileage limit does the time limit apply.

Most cars will need servicing after this amount of time and mileage, however it varies slightly from car to car. Some high-performance automobiles may require more frequent servicing, but high-mileage (typically diesel-powered) cars may have a ‘variable’ service plan, which implies they will not require as much maintenance.

Do diesel cars need more servicing?

When it comes to comparing the costs of repairing petrol and diesel cars, the situation is similar to when we looked at fuel economy.

That is to say, while diesel cars don’t need to be serviced as frequently as gasoline cars, they do cost a little more when they do. So, if you retain your automobile for less than five years, you’re unlikely to notice much of a change.

Furthermore, as petrol engines become more reliable, the gap between them and diesel engines in terms of how frequently they need to be maintained is narrowing.

To save the injectors, use quality fuel

If you ask a specialist how to properly care for a diesel car, they will almost certainly begin with this: do not save money on fuel. Why is this the case? Because the worse the fuel, the more detrimental it is to the injectors, which are prone to damage and costly to replace (this can cost you up to 2,500 PLN per injector). Even if you can repair them instead, each injector will cost a few hundred PLN. Remember that if your automobile has four injectors, you will almost certainly need to repair or replace all of them, which will cost four times as much. Your automobile’s behavior will reflect injector damage; exhaust gases will be very black or very white, and the car may look to choke or you will hear knocking in the engine.

Protect the turbocharger

Another component of a diesel car that demands special attention and is quite expensive to fix is the turbocharger. Allowing it to cool down after you’ve finished driving is the key to extending its life and saving over 1,000 PLN on repairs. Before turning off the engine, experts recommend leaving it running in neutral gear for 20 seconds to 2 minutes after stopping the automobile. Make an effort to drive gently during the first dozen kilometers and avoid abrupt increases in pace. Engine oil has an impact on the turbocharger’s performance. You should change the oil at least once a year or every 15,000 kilometers.

How can you know if your turbocharger needs to be replaced? You’ll notice whistling and a decrease of power, as well as blueish exhaust emissions and increased engine oil usage.

Do not lay rubber

More than just the turbocharger can be harmed by laying rubber. It may also necessitate the replacement of the dual mass flywheel (they are not only used in diesel cars anymore; you can often find them in petrol cars, too, since they help protect the gearbox from vibrations). When you replace the dual mass flywheel, you almost always have to change the clutch as well. What will the cost be? At least 1,000 PLN, if not several times that.

Clean the diesel particulate filter

The DPF (dry filter) or the FAP (wet filter) removes soot from the exhaust gas. In order to reduce emissions, diesel cars now feature particulate filters. Ash build-up can damage the filter if it isn’t cleaned properly. This is especially possible if you just drive in the city and do not achieve higher speeds on the highways outside. The filter may clean itself when you drive rapidly. If your automobile has a FAP filter, make sure you fill up the tank with extra petrol; the computer determines the volume of the special liquid used to remove soot using the FAP filter based on the volume of fuel in the tank, so it’s best not to just fill it up with a few litres when you’re at the station. You would have to pay a few thousand PLN if the filter is destroyed. You can also simply get the filter removed in Poland. While the method is expensive, it may save money as compared to replacing or regenerating broken filters.

Driving a diesel car in winter

The condition of your diesel car is determined by the quality of diesel used, and it is critical, especially in the winter, that you use high-quality fuel. When there is little fuel in the tank, you should avoid keeping it in the cold for longer; winter is the season when you want the tank to be full every time you leave the station. Make sure you replace the filter and inspect the glowplugs, battery, and alternator before winter arrives.

What happens if you dont service a diesel car?

Some individuals prefer diesel engine automobiles, 4WDs, and trucks over petrol-powered engines for three reasons: better fuel economy, durability, and power.

The fuel injection system will clog up over time if you don’t maintain your diesel engine on a regular basis, increasing your risks of a breakdown and raising your repair prices.

We’ve compiled a list of everything you need to know about caring for your diesel vehicle so you can save money on maintenance and extend the life of your vehicle.

Are diesels more expensive to maintain?

Diesel maintenance is less expensive in the long run since diesel engines have fewer problems than gasoline engines; nevertheless, diesels are more expensive to repair when they do. Depending on the sort of diesel car you have, maintenance will not be more expensive than for a gasoline-powered vehicle.

Is insurance higher on diesel cars?

That isn’t so simple. The cost of your insurance is determined by a variety of factors, not only the type of vehicle you own. Insurance companies will consider the following factors when calculating your bill:

When it comes to evaluating your car, other criteria such as its age, worth, security, and any changes have an impact on your car insurance. The cost of repair and replacement parts will also be taken into account by your insurance company. Many newer diesel automobiles include high-tech filters and emission-control systems, which can make them more expensive to fix than their gasoline equivalents. Insurance premiums may rise as a result of this.

How long does a turbo diesel last?

What Is A Turbo Diesel’s High Mileage? According to Prosource Diesel, a secondhand diesel pickup with Cummins or Duramax engines should get roughly 350,000 miles before needing to be replaced. In addition to mileage, a Powerstroke diesel engine must have logged at least 350,000 kilometers in service.

Is it OK to drive a diesel short distances?

This is also known as “diesel car city driving,” and it is something you should avoid. It’s common knowledge among petrolheads, but it’s always worthwhile to explain why.

Low-speed, short-distance driving easily clogs your Diesel Particulate Filter (DPF). If you have a high annual mileage (imagine 10,000+ miles per year) or mostly drive on highways, the effect will be significantly slower.

How often should you change diesel injectors?

Diesel fuel injectors should be replaced every 150,000 to 250,000 miles as a matter of thumb. Every 50,000 miles, they should be inspected by a professional for optimal operation.

Obviously, this will vary depending on how well you maintain your engine. factors such as: