India, July 7 -- The debate over E20 petrol in India has a curious structure. On one side: viral videos of engine failures, Twitter threads about rubber seal corrosion, and a rotating cast of automotive commentators warning of civilisational collapse for pre-2023 vehicles.

five separate markets, each with billions of rupees at stake, showing no distress signal whatsoever. When sentiment and markets diverge this sharply, the question worth asking is not who sounds more convincing - it is who has skin in the game.

Signal One: The used car market is growing, not collapsing

If E20 were quietly destroying pre-2023 vehicles, the segment that constitutes the overwhelming bulk of India's secondhand car inventory, the effect would show up faste...