| VW oil standard | Typical viscosity | Typical engines | Service regime | Notes |
|---|---|---|---|---|
| VW 502 00 | 5W-40 | Older petrol engines | Fixed interval | Pre-LongLife petrol spec |
| VW 505 00 | 5W-40 | Older non-PD diesels | Fixed interval | Superseded on later cars |
| VW 505 01 | 5W-40 | PD diesel engines | Fixed interval | Required for PD injectors |
| VW 504 00 / 507 00 | 5W-30 | Most petrol and DPF diesels | LongLife or fixed | The default modern VAG spec |
| VW 508 00 / 509 00 | 0W-20 | Newer TSI evo and TDI evo | LongLife | Not backwards compatible |
| Porsche C30 | 5W-30 | Porsche low-ash applications | Variable | Low-SAPS Porsche approval |
| Porsche A40 | 0W-40 / 5W-40 | Most Porsche petrol engines | Fixed interval | Long-standing Porsche petrol approval |
Yes. An oil change only service suits high-mileage drivers who want fresh oil between scheduled services, cars that do lots of short journeys, or a quick refresh before a long trip. It does not replace a proper service, because items like air filters, pollen filters, spark plugs and brake fluid still have their own intervals. We will tell you if anything else is due, but the choice stays with you.
It depends on your engine code and service regime, not just the age of the car. Most post-2004 VAG engines take a 5W-30 meeting VW 504 00 or 507 00. The newest TSI evo and TDI evo engines need 0W-20 oil meeting VW 508 00 and 509 00, which is not interchangeable with the older spec. We confirm the correct standard against factory data before we fill.
Usually not. Draining the old oil hot removes the vast majority of contaminants, and modern full synthetics carry detergents that keep a properly serviced engine clean on their own. Flushing chemicals can dislodge accumulated sludge in a neglected engine and send it towards the oil pick-up, so we only recommend a flush in specific cases, and we will explain our reasoning before using one.
On the fixed regime, roughly every 9,000 miles or 12 months, whichever comes first. On LongLife the interval can stretch to around 18,600 miles or two years, but only with LongLife-approved oil and only if your driving suits it. Turbocharged and chain-driven engines in particular benefit from more frequent changes if you do short journeys, towing or hard driving.
Matching the viscosity is not enough. The VW approval controls things the grade does not, such as ash content, which protects the DPF on diesels, and the additive pack that protects timing chains and cam adjusters. Oil without the correct approval can shorten DPF life and gives a manufacturer an easy reason to question a warranty claim. The price difference is small against the risk.
Some consumption is considered normal. VW handbooks quote up to 0.5 litres per 1,000 km as the acceptable maximum, and certain EA888 petrol generations are well known for running towards that figure. What matters is the trend. If consumption is rising, or you are topping up more than a litre between services, it is worth investigating piston rings, the PCV system and turbo seals before it becomes expensive.
Many later VAG engines replaced the dipstick with an electronic level sensor in the sump, so the only reading you ever see is the one on the dash. During the oil change we confirm the level electronically with ODIS and check the sensor is reporting plausible values, because a faulty sender can show a healthy level in a sump that is actually low. Where your engine still has a dipstick, we check both.