Hyundai Sonata Oil Type and Capacity Guide — 2010 to 2026 Model Years

Whether you drive a 2010 Sonata or a brand-new 2026 model, using the correct engine oil is one of the most important things you can do to protect your engine. The Hyundai Sonata has used several different engines across four generations, and oil type and capacity requirements have changed significantly over the years. This guide covers every Sonata engine from 2010 through 2026 so you can confirm exactly what your vehicle needs before your next oil change at Ontario Hyundai.

Hyundai Sonata Oil Type and Capacity — At a Glance

The table below lists the recommended oil viscosity, capacity, OEM filter part number, and oil change interval for every Sonata engine option from 2010 to 2026. All capacities include the oil filter.

Oil capacities are approximate and include filter replacement. Always verify the exact capacity and viscosity for your specific model year and engine in your Hyundai owner’s manual or on the oil fill cap.

Turbo engines operate at higher temperatures and pressures, which is why Hyundai specifies shorter oil change intervals for these powertrains.

What Changed With the DN8 Generation (2020–2026)

If you previously owned an older Sonata, the biggest change to be aware of is the shift to 0W-20 full synthetic oil starting with the 2020 model year. The earlier generations (2010–2019) generally used 5W-20 or 5W-30 depending on the engine, and conventional or synthetic blend oils were acceptable on many configurations.

Starting with the DN8 generation, Hyundai moved to 0W-20 full synthetic for the 2.5L and Hybrid engines and 0W-30 full synthetic for the 2.5T N Line. These thinner-viscosity oils flow more easily at cold startup, reduce internal friction, and support the tighter engine tolerances in Hyundai’s Smartstream powertrain family. Using the correct oil viscosity is especially important on these newer engines — substituting a heavier oil can affect fuel economy, and using the wrong specification could impact warranty coverage.

Why Oil Type Matters for Your Sonata

Engine oil lubricates moving parts, reduces friction, carries heat away from critical components, and keeps the engine clean by suspending contaminants until they are captured by the oil filter. Using the correct viscosity ensures these functions work as Hyundai’s engineers intended.

The viscosity rating — such as 0W-20 or 5W-30 — describes the oil’s thickness at two temperature points. The first number (before the “W”) indicates cold-temperature flow. A lower number means the oil flows more easily during cold starts, which reduces wear during the first few seconds of engine operation. The second number indicates viscosity at normal operating temperature, where the oil must maintain enough thickness to protect under load.

Full synthetic oil provides better thermal stability, longer service life, and superior protection against sludge and deposits compared to conventional oil — which is why Hyundai specifies full synthetic for all current Sonata engines. For more details on how oil changes fit into your broader maintenance plan, see our Hyundai Maintenance Schedules guide.

Oil Change Intervals and Filter Replacement

Hyundai recommends oil changes at the intervals listed in the table above based on engine type. Under normal driving conditions, naturally aspirated engines (2.4L, 2.5L, and Hybrid) typically follow a 7,500-mile or 12-month schedule. Turbocharged engines (1.6T, 2.0T, 2.5T) generally require more frequent changes — around 5,000 to 6,000 miles — because higher operating temperatures break down oil faster.

For drivers in Ontario and the surrounding Inland Empire communities like Fontana, Rancho Cucamonga, and Eastvale, stop-and-go traffic and summer heat can place additional strain on engine oil. Under these severe driving conditions, shortening the interval to every 5,000 miles provides an extra margin of protection regardless of engine type. Wondering what to expect during the process? Our guide on how long an oil change takes has you covered.

The 2020 and newer Sonata uses a cartridge-style oil filter housed in a reusable casing, which means only the filter element needs replacement during service. The DN8 generation uses three different filter part numbers depending on engine: 26350-2S000 for the 2.5L and 2.5T, 26350-2M000 for the 1.6T, and 26350-2J000 for the 2.0L Hybrid. Earlier Sonata models (2010–2019) all use the same spin-on filter: 26300-35505. Using a genuine Hyundai oil filter ensures proper fit and filtration performance — call our parts team at 888-348-4964 to confirm availability or order ahead of your visit.

Schedule Your Sonata Oil Change at Ontario Hyundai

Ontario Hyundai’s factory-trained technicians service every Sonata generation from 2010 through 2026 and use the correct oil type and genuine filters for your specific engine. Whether you are due for routine maintenance or need to confirm your vehicle’s oil specification, our service team is ready to help. Visit our Service and Parts Tips hub for more helpful guides.