
Hyundai-Kia G4KD
The most famous problem with Theta engines is the formation of scuffing in the cylinders due to the ingress of catalyst crumbs…
The Hyundai ix35 is a compact crossover from the Correan manufacturer Hyundai Motor Company. Its other name – Hyundai Tucson – originated in honor of the city of Tucson, located in the US state of Arizona. Production started in 2004. At the moment, they are producing cars of the 2nd and 3rd generations. ix35 was manufactured not only in Korea, but also in Slovakia and the Czech Republic. The assembly of the first generation cars is still going on at Ukrainian factories in the city of Cherkassy. Hyundai ix35 is developed on the same platform as Hyundai Elantra and Kia Sportage …
The Hyundai ix35 was offered with 9 engines since 2009 (2 diesel, 7 petrol). Displacement ranges from 1.6 to 2.4 liters, power output from 116 to 184 hp. All of them use a timing chain. 2 are turbocharged. The longest rated lifespan belongs to the Hyundai-Kia D4HA (about 400,000 km).
| Engine | Years | Volume | Power | Fuel | Timing | Oil | Lifespan |
|---|---|---|---|---|---|---|---|
| Hyundai ix35 1 (LM) 2009–2015 | |||||||
| Hyundai-Kia G4KE | 2009–2015 | 2.4 L R4 | 170–180 hp | petrol | chain | 5.2 L | ~300,000 km |
| Hyundai-Kia G4KD | 2009–2013 | 2.0 L R4 | 145–165 hp | petrol | chain | 4.5–6.5 L | ~300,000 km |
| Hyundai-Kia D4FD | 2010–2015 | 1.7 L R4 | 116–141 hp | diesel, turbo | chain | 5.7 L | ~350,000 km |
| Hyundai-Kia D4HA | 2010–2015 | 2.0 L R4 | 136–184 hp | diesel, turbo | chain | 8.8 L | ~400,000 km |
| Hyundai-Kia G4FD | 2010–2015 | 1.6 L R4 | 130–140 hp | petrol | chain | 4.2 L | ~300,000 km |
| Hyundai-Kia G4ND | 2013–2015 | 2.0 L R4 | 150–172 hp | petrol | chain | 4.8 L | ~300,000 km |
| Hyundai-Kia G4NC | 2013–2015 | 2.0 L R4 | 150–177 hp | petrol | chain | 4.6 L | ~300,000 km |
| Hyundai-Kia G4NA | 2013–2015 | 2.0 L R4 | 150–167 hp | petrol | chain | 4.5 L | ~300,000 km |
| Hyundai ix35 2 (NU) 2020–present | |||||||
| Hyundai-Kia G4NJ | 2020–present | 2.0 L R4 | 161 hp | petrol | chain | 4.3 L | ~250,000 km |
Hyundai ix35 1 (LM) (2009–2015): Hyundai-Kia G4KE, Hyundai-Kia G4KD, Hyundai-Kia D4FD, Hyundai-Kia D4HA, Hyundai-Kia G4FD, Hyundai-Kia G4ND, Hyundai-Kia G4NC and Hyundai-Kia G4NA; Hyundai ix35 2 (NU) (2020–present): Hyundai-Kia G4NJ.
By rated service life the most durable Hyundai ix35 engines are: Hyundai-Kia D4HA — about 400,000 km; Hyundai-Kia D4FD — about 350,000 km; Hyundai-Kia G4FD — about 300,000 km. Actual lifespan depends heavily on maintenance and oil change intervals.
Engine oil capacity with filter: Hyundai-Kia D4FD — 5.7 L (0W-30, 5W-30); Hyundai-Kia D4HA — 8.8 L (5W-30, 5W-40); Hyundai-Kia G4FD — 4.2 L (0W-30, 5W-30); Hyundai-Kia G4KD — 4.5–6.5 L (5W-30, 5W-40); Hyundai-Kia G4KE — 5.2 L (5W-30, 5W-40); Hyundai-Kia G4NA — 4.5 L (5W-20, 5W-30); Hyundai-Kia G4NC — 4.6 L (5W-20, 5W-30); Hyundai-Kia G4ND — 4.8 L (5W-20, 5W-30); Hyundai-Kia G4NJ — 4.3 L (0W-20).
Timing chain: Hyundai-Kia D4FD, Hyundai-Kia D4HA, Hyundai-Kia G4FD, Hyundai-Kia G4KD, Hyundai-Kia G4KE, Hyundai-Kia G4NA, Hyundai-Kia G4NC, Hyundai-Kia G4ND and Hyundai-Kia G4NJ.
Yes: Hyundai-Kia D4FD and Hyundai-Kia D4HA.

The most famous problem with Theta engines is the formation of scuffing in the cylinders due to the ingress of catalyst crumbs…

The main complaints about the powertrains of the Theta line are related to scuffing in the cylinders, which appear due to crumbs…

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The most serious problem of this unit is the appearance of scoring in the cylinders. The reason is a weak catalyst, which…

It lifts them up in the same way as its counterparts in the series with distributed injection: it sucks the catalyst crumbs…

The main complaints of the owners of these engines are caused by the appearance of scuffing in the cylinders, which are formed…

A simple naturally aspirated engine with port injection.