You need an oil change and the cap says "0W-20," but the local mechanic says "5W-30 is fine." Without Manual: You trust the mechanic. With PDF: You turn to "Specifications" and see that for the 3ZR-FAE engine (2.0L), 0W-20 is mandatory for variable valve timing health. 5W-30 will cause sludge. You correct the mechanic.
And that’s where the trouble—and the adventure—begins. Toyota Voxy Manual Pdf
This is the most common Voxy imported internationally. It features the 1.8L hybrid (ZWR80) and 2.0L gasoline (ZRR80). You need an oil change and the cap