Should ix35 use 5w30 or 5w40?
3 Answers
ix35 uses 5w40. Here is some relevant information about ix35: 1. The ix35 is a compact SUV under Hyundai, equipped with two engines: a 1.4L turbocharged engine and a 2.0L naturally aspirated engine. 2. This engine features direct fuel injection technology and uses an aluminum alloy cylinder head and block. 3. The 1.4L turbocharged engine delivers 140 horsepower and a maximum torque of 242 Nm, with a maximum power output at 6000 rpm and peak torque between 1500 to 3200 rpm.
I've been driving a Hyundai ix35 for several years and often ponder over the choice of engine oil. Honestly, 5W30 is more suitable for this car than 5W40. Why do I say that? Most Hyundai ix35 designs recommend 5W30 because its viscosity is moderate—it flows faster during cold starts in winter, preventing engine difficulty in starting; it also maintains lubrication in summer heat without being as thick as 5W40, which can increase engine burden. I live in the north where winter temperatures drop below minus ten degrees Celsius. Since switching to 5W30, cold starts have never been an issue, and it's slightly more fuel-efficient than 5W40. Of course, if your car is an older model or operates under high-load conditions, such as frequently driving on mountainous roads or towing heavy loads, occasionally using 5W40 is acceptable, but it might increase fuel consumption slightly, so it's unnecessary under normal circumstances. I recommend checking the owner’s manual or consulting a 4S shop first to confirm the recommended oil for your specific model and year—don’t blindly follow trends. In short, regularly using 5W30 is reliable, as it can extend engine life and save you frequent trips to the repair shop.
I've been maintaining my own car for years and have paid attention to the oil issue with the ix35. Generally, 5W20 or 5W30 is recommended, and you should never casually switch to 5W40. The advantage of 5W30 lies in its better fluidity, ensuring smooth engine operation, especially in stop-and-go city driving where it reduces resistance, saving an average of 1-2 liters per 100 kilometers. On the other hand, 5W40 has higher viscosity. While it offers slightly better protection at high temperatures, most ix35 engines don’t utilize that feature, and it instead increases fuel consumption and emissions. I remember once experimenting with different brands of oil—using 5W40 clearly resulted in higher fuel consumption, and the idle speed even increased slightly. I suggest you follow the manual. If the recommended value isn’t available, prioritize full synthetic 5W30 and pair it with a regular oil change routine. Don’t forget to consider the weather—in areas with large temperature variations, stick to the factory oil to avoid issues. This simple adjustment can enhance the overall driving experience and be a bit more eco-friendly.
