What is E20 Petrol?
E20 means 20% ethanol blended with 80% petrol. Learn what E0, E5, E10 and E20 mean and why India switched.
Read guide →Guides
E20 petrol, explained simply
Everything an Indian driver actually needs to know about E20 — mileage, engine health, warranty, retrofit costs and more. Honest, sourced, and free of WhatsApp myths.
Basics
Mileage
E20 & Mileage Drop
How much fuel economy really drops on E20 — the official 3–6% figure vs real-world owner reports.
Read guide →Engine
E20 & Your Engine
What ethanol does to fuel-system parts, and whether older vehicles face real engine risk.
Read guide →Rights
Warranty & Insurance
Does using E20 void your warranty? Your rights, what OEMs say, and what to do if there's damage.
Read guide →Service
Retrofit Kits & Service
Do older vehicles need a retrofit kit for E20? What it costs and which parts to check.
Read guide →Compare
E20 vs E10
What actually changed from E10 to E20 — blend, mileage, compatibility and cost.
Read guide →Is your vehicle E20-ready?
Use the checker →Cars
E20 Compatible Cars
A brand-by-brand look at which Indian cars are designed for E20 — and what pre-2023 owners should know.
See car list →Bikes
E20 Compatible Bikes
Which two-wheelers are E20-ready, and how ethanol-blended petrol affects older bikes and scooters.
See bike list →Myths
E20 Myth vs Fact
Separating viral claims from what the government, ARAI and OEMs actually say about E20.
Check the facts →Stop guessing — check your own vehicle
Get an instant, honest verdict for your exact car or bike, plus the real mileage and cost impact of E20.