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Checked oil specs by engine

2018 Kia K900 oil capacity, type & filter

Multiple engine options are listed for the 2018 Kia K900. Select your engine below before buying oil or a filter.

2018 Kia K900 oil specs by engine
Engine Capacity Oil Type Filter
3.8L V6 — 5W-30 Purolator L25848
5.0L V8 8.9 qt 0W-20 Purolator L25848

Match one of 2 checked engine options before buying oil or a filter.

3.8L V6
Capacity Not confirmed Confirm the service-fill amount for this engine before adding oil.
Oil type 5W-30 i Based on 2 checked sources: Valvoline Product Finder and Castrol (Olyslager). Additional cross-check is still pending: additional evidence. Use it as a reference, then confirm the viscosity grade for this engine before checkout. See how we verify. Learn how we verify fitment OEM oil approval is not source-backed on this page; confirm the bottle or owner's manual before checkout.
Oil Filters
Purolator Shown first L25848 Search L25848

Confirm Purolator L25848 in the retailer selector before checkout.

i Based on 1 checked source: Purolator Part Finder. Additional cross-check is still pending: another filter catalog cross-check and alternate part-number support. Use it as a reference, then confirm the exact filter part number at checkout. See how we verify. Learn how we verify fitment
5.0L V8
Capacity 8.9 qt i Based on 1 checked source: Valvoline Product Finder. Additional cross-check is still pending: a second checked capacity source and capacity condition (service fill / with filter vs dry fill). Use it as a reference, then confirm the service-fill / with-filter amount before adding oil. See how we verify. Learn how we verify fitment
Oil type 0W-20 i Based on 1 checked source: Valvoline Product Finder. Additional cross-check is still pending: a second checked oil-type source. Use it as a reference, then confirm the viscosity grade for this engine before checkout. See how we verify. Learn how we verify fitment OEM oil approval is not source-backed on this page; confirm the bottle or owner's manual before checkout.
Oil Filters
Purolator Shown first L25848 Search L25848

Confirm Purolator L25848 in the retailer selector before checkout.

i Based on 1 checked source: Purolator Part Finder. Additional cross-check is still pending: another filter catalog cross-check and alternate part-number support. Use it as a reference, then confirm the exact filter part number at checkout. See how we verify. Learn how we verify fitment

3 sources checked Last checked: 2026-06-27 How we verify →

Where to Buy View Data Sources
Buy oil & filters:
Walmart → AutoZone → Amazon → O'Reilly →
Full synthetic options for 5W-30
Mobil 1 Extended Performance 5W-30 → Castrol Edge 5W-30 → Pennzoil Platinum 5W-30 →

Search paths only — confirm your OEM viscosity spec and quantity before checkout.

Full synthetic options for 0W-20
Mobil 1 Extended Performance 0W-20 → Castrol Edge 0W-20 → Pennzoil Platinum 0W-20 →

Search paths only — confirm your OEM viscosity spec and quantity before checkout.

2018 Kia K900 oil specs: capacity conditions and filter notes

Which engine applies?

Check the door jamb sticker, owner's manual, or displacement badge on the engine cover. Match it to the engine options listed above before buying oil or a filter.

Verify before checkout

Retailer fitment tools may use different data. Confirm oil capacity, viscosity, and filter part number before ordering.

Source coverage for the 2018 Kia K900

Capacity sources

Supported by Valvoline Product Finder.

Oil type sources

Supported by Valvoline Product Finder and Castrol (Olyslager).

Filter sources

Supported by Purolator Part Finder.

Source coverage

3 checked source rows for the 2018 Kia K900.

Before ordering for this 2018 Kia K900

Checkout verification checklist
3.8L V6 Buy →
Capacity
Unverified
Oil type
5W-30
Interval
7,500 mi / 12 mo
Filter
Purolator L25848
5.0L V8 Buy →
Capacity
8.9 qt
Oil type
0W-20
Filter
Purolator L25848

Source check: Last checked 2026-06-27 from Purolator Part Finder, Valvoline Product Finder, and Castrol (Olyslager).

Kia K900 oil specs by year

This table includes checked Kia K900 model years available in our database.

Year Capacity Oil type Filter
2020 8.1 qt 5W-30 BOSCH 4020
2019 8.1 qt 5W-30 CHAMPION FILTER 55250T
2018 Current page 6.4 qt (multiple engines) 5W-30 Purolator L25848
2017 6.4 qt (multiple engines) 10W-30 WIX 51032
2016 6.4 qt (multiple engines) 5W-30 WIX 51032
2015 7.6 qt (multiple engines) 5W-20 R84250

How we verified 2018 Kia K900 oil data

How we verify fitment

Checked fitment data. Last checked: 2026-06-27.

This page checked 3 sources for the 2018 Kia K900. The table lists which checked source contributed capacity, oil type, or filter evidence.

We checked leading oil brands and aftermarket filter catalogs so you don't have to.

Confidence
Cross-check pending i Some oil fields are based on checked source data but still need stronger cross-check evidence. Review area: 3.8L V6 oil type, 3.8L V6 oil filter, 5.0L V8 capacity, 5.0L V8 oil type, and 5.0L V8 oil filter. Use the listed values as references and confirm the exact engine before ordering or adding oil. See how we verify. Learn how we verify fitment
Sources checked
3
Last checked
2026-06-27
Field-level source support
  • Capacity: Valvoline Product Finder
  • Oil type: Valvoline Product Finder and Castrol (Olyslager)
  • Filter: Purolator Part Finder
  • Change interval: Valvoline Product Finder and Castrol (Olyslager)
Source Supports Checked Link
Purolator Part Finder Filter 2026-06-27 Visit brand site
Valvoline Product Finder Capacity, Oil type 2026-06-27 Checked source
Castrol (Olyslager) Oil type 2026-06-27 Visit brand site

2018 Kia K900 oil FAQ

Which engine configuration applies to my vehicle?

Use the door jamb sticker, owner's manual, or engine cover badge to identify your engine, then match it to the engine options listed above.

Is the oil capacity measured with or without the filter?

Capacity condition matters. With filter includes a new filter. Service fill is the typical drain-and-fill amount. Dry fill is for a fresh empty engine only.

Why should I confirm before buying?

Retailer catalogs can update separately. Confirm the exact 2018 Kia K900 selector at checkout before you buy.

Do I also need to match the OEM oil approval?

Yes. Viscosity is only one part of the oil spec. Match the oil approval listed in your owner's manual or on the bottle before checkout.

How often should I change the oil on a 2018 Kia K900?

Change intervals vary by engine option for this vehicle. Always follow your owner's manual and oil-life monitor. Severe service may require a shorter interval.

Do I need a new drain plug gasket?

Replace it when your vehicle uses a serviceable gasket or crush washer. Confirm the gasket size and drain plug torque from the service manual or parts counter.

2018 Kia K900 maintenance checklist

One part checked. Look up the rest while you're here.

Where to buy

These are retailer search paths for your vehicle. The specs above are checked — use the retailer's vehicle selector at checkout to confirm before ordering.

This section may include affiliate or sponsored retailer links. They are purchase paths, not fitment evidence.

Look up another vehicle

Find checked oil capacity, type, and filter data by exact year, make, and model.

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