2025 Kia K5 will be available with 2.5L non-turbo engine

How has the Smartstream (Theta III 🙄) been aging?

Smartstream G2.5 (G4KM/G4KN)
Comes in two versions, 2.5 MPi (G4KM) and 2.5 GDi (G4KN), Bore is 88.5 mm (3.48 in) with a 101.5 mm (4.00 in) stroke.

The Smartstream G2.5 MPi is an inline 4-cylinder engine with multi-port injection and a 10.5:1 compression ratio; the engine makes 179.5 PS (177 hp; 132 kW) at 6,000 rpm and 23.7 kg⋅m (171 lb⋅ft; 232 N⋅m) of torque at 4,000 rpm.

The Smartstream G2.5 GDi is an inline 4-cylinder engine with both direct and multi-port injection and a 13.0:1 compression ratio; the engine makes 194 PS (191 hp; 143 kW) at 6,100 rpm and 25 kg⋅m (181 lb⋅ft; 245 N⋅m) of torque at 4,000 rpm in the Sonata, for the Azera and Cadenza the engine makes 198 PS (195 hp; 146 kW) at 6,100 rpm and 25.3 kg⋅m (183 lb⋅ft; 248 N⋅m) of torque at 4,000 rpm.
 
I have one in the sister model, a '23 Sonata. So far, very pleased. I always wondered why the K5's base model came with the 1.6T when this engine was available.
Theta III have been on the road since 2019 (2020 models), so far so good.
 
I awould think a turbo on a 2.5 liter engine would be more reliable than a turbo on a 1.5 liter motor.
You don't want anything (YET) with a turbo from this Hyunkia manufacturer. More time is needed for assurance that the engines will hold up. Smart shoppers that can wait - should wait until 2026 at the earliest. Let this current crop of used smartstream vehicles of 2021 until present, ages more.

Even the Theta 2 garbage would last 80k. If the 2021+ are any good - even average, then wait for 100k reports.. When so many engine failures occur, seek another manufacturer for your next new vehicle. Pay a few Grand more and sleep easier.
 
The general trend over the past 10 years or so has been for most auto makers to switch to small turbo engines. Why is Kia bucking the trend this late in the game? Especially when it means a 14 lb-ft drop in torque?
 
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