What is the most suitable engine oil for the Buick Excelle 15N naturally aspirated engine?
2 Answers
The most suitable engine oil for the Buick Excelle 15N naturally aspirated engine is 5W-30 semi-synthetic oil, as semi-synthetic oil is suitable for its turbocharged engine. Semi-synthetic oil is made from semi-synthetic base oil, which is a product of mineral oil purified through hydrocracking technology. It is a mixture of mineral oil and full synthetic oil in a 4:6 ratio. The Buick Excelle is a premium mid-size car launched by SAIC-GM. The car's dimensions are 4419mm in length, 1814mm in width, and 1487mm in height, with a wheelbase of 2685mm. In terms of power, the Excelle is equipped with a new generation of 1.3T and 1.0T Ecotec dual-injection turbocharged engines, with maximum power outputs of 120kW and 92kW, and maximum torques of 230Nm and 170Nm, respectively.
As an owner of the Excelle 15N naturally aspirated model, I've found over several years of driving that SAE 5W-30 full synthetic oil works best, just as the manufacturer recommends. This oil flows quickly during cold starts and doesn't thin out in summer heat, protecting engine pistons and bearings. I've used Shell and Mobil's 5W-30 oils and noticed smoother acceleration with stable fuel consumption around 7L/100km. Changing oil every 5,000 km or six months is crucial to prevent excessive engine wear, and I regularly check oil levels to keep the system clean. Using the wrong viscosity, like 10W-40, could increase resistance, affect power output, or even cause oil burning. Overall, 5W-30 is both affordable and reliable, capable of extending engine life beyond 200,000 km.
