Should the Tiguan use 5w30 or 5w40?
2 Answers
Tiguan should use 5w40, as the Volkswagen Tiguan manual recommends engine oil of the SL5W40 grade. Below are the differences between 5W-30 and 5W-40: 1. Fluidity: 5W30 has better fluidity than 5W40, which can further reduce fuel consumption, has better heat dissipation performance, and produces less noise. 2. Applicable vehicles: 5W30 is more suitable for newer vehicles, while 5W40 is more commonly used for older vehicles. 3. Stability: 5W40 has superior stability and less fluctuation under high-temperature conditions compared to 5W30.
Regarding the question of whether to use 5W30 or 5W40 oil for the Tiguan, I’ll share my personal driving experience. I’ve owned my Tiguan for several years, and the owner’s manual generally recommends 5W30 because it flows better, making cold starts easier in winter and protecting the engine. However, during hot summers or frequent highway driving, switching to 5W40 is also reliable—its higher viscosity provides better protection for internal components and reduces overheating risks. My personal habit is to adjust based on seasonal changes: 5W30 for colder northern climates and 5W40 for hotter southern regions. Don’t just rely on others’ advice—check your car’s manual first, as it specifies the exact requirements. Choosing the wrong oil can affect engine longevity, so always consult a mechanic during maintenance to avoid wasting money.
