0w-20 Vs 0w-30: Are You Using The Wrong Oil?

0W-20 vs 0W-30 — which one is actually better for your engine? I pulled the actual product data sheets from Mobil 1, Pennzoil, and Castrol, plus used oil analysis (UOA) reports, to see what the evidence really says about these two viscosity grades.
This isn't a "thicker oil is safer" or "manufacturers know best" video. It's an honest look at 0W-20 and 0W-30 motor oil using real API-licensed data, SAE J300 viscosity standards, and manufacturer technical data sheets — so you can decide for your own engine instead of trusting a forum comment.

#machine #Equipment #Engine