Herb Chambers Kia of Burlington

2018 Kia Optima Plug-In Hybrid Oil Filter

Kia Oil Filter service at Herb Chambers Kia of Burlington in Burlington, MA

Frequently asked questions

Frequently Asked Questions

6 common questions answered

Is the oil filter replaced every time a 2018 Kia Optima Plug-In Hybrid has its oil changed?The oil filter should be replaced with the oil service when the filter is due for replacement.

Replacing both helps ensure fresh oil is passing through a filter with useful capacity. The service timing depends on the manufacturer’s maintenance guidance, vehicle service history, and inspection. No maintenance interval is stated for this model year.

  • Filter replacement accompanies the oil service.
  • The filter captures debris carried by engine oil.
  • Inspection helps guide maintenance decisions.
What is included in an oil filter replacement on a 2018 Kia Optima Plug-In Hybrid?The service includes a filter matched to the engine, a new drain plug gasket or washer where applicable, and a leak check after the engine runs.

The 2.0-liter inline-four requires an application-matched filter rather than a universal assumption. The technician checks the filter seal after operation to help identify leaks. The filter is replaced alongside the oil.

  • Engine-matched oil filter
  • Drain plug gasket or washer where used
  • Post-service filter-seal leak check
What happens if the oil filter on a 2018 Kia Optima Plug-In Hybrid is not replaced?A loaded filter can open its bypass valve, allowing oil to circulate without being filtered.

The engine still receives oil, but it no longer receives the intended level of filtration. Drivers may notice an oil-pressure warning, unusual engine noise, or oil that darkens quickly after a change. Inspection and service history help determine the next step.

  • Debris remains captured until filter capacity is loaded.
  • The bypass valve may allow unfiltered oil flow.
  • Oil and filter service restores the filtering step.
Does a 2018 Kia Optima Plug-In Hybrid need a specific oil filter?Yes, the filter is matched to this 2.0-liter, 1,999 cc inline-four engine, and filters are not interchangeable across engines.

The correct application depends on the engine actually fitted to the vehicle. A filter selected for another engine may not provide the intended fit or sealing. Herb Chambers Kia of Burlington matches the replacement filter to this engine during service.

  • Engine displacement: 2.0 liters
  • Engine configuration: inline-four
  • Filter selection is application-specific
Can the oil be changed on a 2018 Kia Optima Plug-In Hybrid without changing the filter?Oil can be changed without replacing the filter, but the filter’s condition and service history determine whether that is appropriate.

Using a loaded filter across another oil change can allow the bypass valve to open and unfiltered oil to circulate. Replacing the filter with the oil supports continued filtration. Inspection and the manufacturer’s maintenance guidance help determine the service required.

  • Filter condition matters during an oil change.
  • A loaded filter may trigger bypass flow.
  • Service history helps guide the decision.
How do I book an oil and filter service at Herb Chambers Kia of Burlington?You can schedule an appointment online with Herb Chambers Kia of Burlington or call 781-868-4638.

The dealership is located at 93 Cambridge Street, Rte 3A, Burlington, MA 01803. Tell the service team you have a 2018 Kia Optima Plug-In Hybrid and need an oil and filter service. The filter will be matched to the engine actually fitted.