How often should you service your car?
Service intervals, interim versus full, and the warranty myth that costs drivers money. Here's what we actually tell our own customers about keeping a car healthy.
Interim vs full service
- Interim service — every 6 months or ~6,000 miles. A lighter check: oil and filter, fluid levels, and an inspection of key safety items. Aimed at high-mileage drivers who'd otherwise go too long between checks.
- Full service — every 12 months or ~12,000 miles. More thorough: additional filters, a wider set of checks and adjustments. The one most drivers have once a year.
Those are rules of thumb. The schedule in your handbook — which varies by make, model, engine and even fuel type — takes priority, so check it and follow that if it differs.
An MOT is not a service
It's a common mix-up. An MOT is a legal check that your car meets a minimum safety and emissions standard on test day — it doesn't change the oil or maintain anything. A service is preventative care that keeps the car reliable and catches wear before it becomes a failure or a breakdown. A car can sail through its MOT and still be overdue a service.
The warranty myth, busted
Plenty of drivers believe they have to use a main dealer or they'll lose their warranty. That's not the case. As long as the car is serviced on schedule and to the correct specification using appropriate-quality parts, an independent garage can carry out the work and your manufacturer warranty stays intact. You have the right to choose who services your car — often at a lower price than the dealer.
Signs your car needs a service sooner
- A service or oil light showing on the dashboard.
- New noises — squeals, knocks or grinding.
- Rougher running, hesitation, or noticeably worse fuel economy.
- Oil that's very dark, gritty or low on the dipstick.
- Brakes that feel soft, grabby or make noise.
We service cars on your driveway across Gloucestershire, keep your service history stamped and up to date, and only ever recommend work that genuinely needs doing.
Common questions
How often should I service my car?
A common rule of thumb is a full service every 12 months or 12,000 miles, whichever comes first, with an interim service every 6 months or 6,000 miles for higher-mileage drivers. Always check your handbook, though — the manufacturer's schedule takes priority.
What's the difference between an interim and a full service?
An interim service is a lighter check-up — oil and filter, fluid levels, and a look over key safety items — aimed at people covering a lot of miles between full services. A full service is more thorough, covering more components, filters and checks, and is the one most drivers have annually.
Is an MOT the same as a service?
No. An MOT is a legal safety and emissions check — it confirms the car meets a minimum standard on the day. A service maintains the car: fresh oil, filters and preventative checks that keep it reliable and catch problems early. You need both.
Will servicing at an independent garage void my warranty?
No — as long as the car is serviced on schedule and appropriate-quality parts are used, having an independent garage do the work doesn't void a manufacturer's warranty. You're free to choose who services your car; you don't have to use a main dealer.
What happens if I skip a service?
Oil degrades and stops protecting the engine properly, small faults go unspotted until they become big ones, and your service history has a gap — which can knock the resale value. Skipping the odd service rarely shows immediately, but it adds up.
How do I know if my car needs a service sooner?
Warning signs include a service light on the dash, unusual noises, rougher running or worse fuel economy, oil that's very dark or low, and brakes that don't feel right. If in doubt, we're happy to take a look.
Due a service? We come to you
Interim and full servicing at your home or workplace across Gloucestershire — warranty-safe, honest, open 24/7, no callout fee within 5 miles.
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