QUOTE(hus2020 @ Dec 7 2018, 02:43 PM)
I wonder why? If u use car less why would it need servicing in 6 months. I believe a year should be a more reasonable duration
Oxidation occur when your engine oil contact with oxygen regardless you start the engine or not.
Not to forget Malaysia's weather are always hot and humid, which will deteriorate operating fluids even you didnt use the car.
Let me give you another example, Brake Fluid. Do you know that brake fluid is hygroscopic? ie it will absorb water over period of time. This is why manufacturer stated time-based maintenance and mileage based maintenance for automobile. Maintenance has to be carry out to ensure operating fluids are in good conditions to prolong engine lifespan.
Buta-buta follow mileage to service also another problem. Imagine in Klang Valley you had a bad traffic where just move 5KM in an hour. The odometer recorded only 5km but in actual your engine has been running non stop for 1 hour. The resource consumption in this case is not taken into account.
For continental cars like BMW the maintenance interval is like 15,000km. The result? Engine oil sludge. Google it and you will find more info.