Every time you start your car, your engine is working hard. Inside, metal components are moving thousands of times a minute and generating a lot of heat. The only thing stopping those parts from wearing out quickly is a thin film of engine oil. That is why regular oil changes and routine servicing are essential if you want to keep your car reliable, efficient, and safe.

At Dom’s Garage Services in Letchworth (11 Protea Way, SG6 1JT), we see first-hand what happens when oil changes and servicing are delayed or skipped. A little preventative maintenance now can save you from big repair bills later.

What Does Engine Oil Actually Do?

Engine oil has several crucial jobs inside your engine:

• Lubrication: Reduces friction between moving parts and helps to prevent premature wear.
• Cooling: Carries heat away from critical engine components and supports the cooling system.
• Cleaning: Picks up dirt, soot and tiny metal particles, which are then trapped in the oil filter.
• Protection: Helps protect internal surfaces against rust and corrosion.
• Sealing: Assists with sealing between piston rings and cylinder walls for better compression and performance.

Over time, oil becomes contaminated and breaks down. It loses its ability to lubricate and protect your engine properly, and that is when internal wear and damage can start to build up.

What Happens If You Don’t Change Your Oil?

Missing oil changes might not cause an instant failure, but the damage is happening quietly in the background. Common issues include:

• Increased wear: Old, thin or dirty oil cannot effectively stop metal-to-metal contact.
• Sludge build-up: Contaminated oil can thicken into sludge, blocking oilways and restricting flow.
• Overheating: Poor-quality oil struggles to carry heat away, so the engine runs hotter.
• Reduced performance and economy: A poorly lubricated engine has to work harder, using more fuel.
• Major failures: In severe cases, neglected oil changes can contribute to turbo damage, timing chain issues, or even total engine failure.

A scheduled oil and filter change at Dom’s Garage Services is a relatively small cost compared with repairing or replacing a damaged engine.

Why Regular Servicing Matters

Engine oil changes are usually carried out as part of a regular service. A service is a full health check for your vehicle that helps keep you safe on the road and prevents small faults from turning into big problems.

A typical service at Dom’s Garage Services in Letchworth may include:

• Engine oil and filter change using the correct specification oil
• Checks and top-ups of coolant, brake fluid, power steering fluid and screenwash
• Brake, tyre, steering and suspension inspections
• Lights, wipers and other safety checks
• Air and fuel filter replacement where required
• Visual inspection for leaks, corrosion and general wear

Regular servicing helps you stay ahead of issues that could cause breakdowns, MOT failures, or expensive repairs further down the line.

How Often Should You Change Your Oil or Service Your Car?

Most manufacturers recommend a service every 12 months or at a specific mileage (commonly around 10,000–12,000 miles), whichever comes first. If you mainly drive short, stop–start journeys, your engine oil may degrade more quickly, so more frequent oil changes can be a good idea.

If you are unsure how often your car should be serviced, the team at Dom’s Garage Services can advise based on your vehicle’s make, model, age and how you use it day to day.

Benefits of Regular Oil Changes and Servicing

• Better reliability: Reduced risk of unexpected breakdowns.
• Longer engine life: Good lubrication dramatically slows down wear.
• Improved fuel economy: A well-maintained engine runs more efficiently.
• Smoother performance: Quieter, cleaner running with better response.
• Stronger resale value: A solid service history is attractive to future buyers.
• Peace of mind: You know your car has been properly checked by experienced technicians.

Signs Your Car May Be Overdue a Service

Look out for these common warning signs:

• Service or oil warning light illuminated on the dashboard
• Engine sounding noisier than usual, especially on cold starts
• Oil on the dipstick looks very dark, thick or gritty
• Drop in fuel economy or sluggish performance
• Burning smell, smoke or any unusual noises from the engine bay

Even if you do not notice any obvious symptoms, it is still important to follow the recommended service schedule. Many developing issues are only visible when the car is inspected on a ramp.

Why Choose Dom’s Garage Services in Letchworth?

At Dom’s Garage Services, we provide honest, high-quality servicing and engine oil changes for all makes and models. As an independent local garage, our focus is on fair pricing, clear communication and workmanship you can trust.

• Local, friendly garage in Letchworth
• Clear, upfront pricing and advice
• Quality oils and parts matched to your vehicle
• Experienced technicians and personal service

Book Your Oil Change or Service Today

Protect your engine, improve reliability and spread the cost of motoring by keeping on top of oil changes and regular servicing.

Book online: https://domsgarageservices.co.uk/

Call: 01462 671753

Visit us: Dom’s Garage Services, 11 Protea Way, Letchworth, SG6 1JT