Should Emgrand GL use 5w30 or 5w40?

[LaRonan]

Emgrand GL uses 5w30 engine oil. Here are some introductions about Emgrand GL:1. Emgrand GL innovatively adopts a floating treatment for the shield-shaped water ripple grille, which is integrated with the sharp eagle-eye projection headlights, outlining a hawk-beak style floating front face. The wide lower grille design full of strength and beauty, along with the embellishment of crystal-like LED daytime running lights, adds a dynamic touch to the overall front face while maintaining its sharp momentum.2. Thanks to its 4725mm body length (the longest in its class) and 2700mm ultra-long wheelbase, Emgrand GL's side profile features very slender and stretched lines.