Is Audi A5 E20 compliant?
Petrol variants manufactured from 2024 onwards can safely use E20 fuel. Older petrol variants are not certified for E20.
E20 compatible from: 2024 onwards
Expected mileage impact: 4–6% reduction(ARAI controlled tests (2026))
Year-wise E20 compliance status
Sportback 40 TFSI Premium Plus
petrol · automatic
Sportback 40 TFSI Technology
petrol · automatic
Sportback 35 TDI
diesel · automatic
S5
petrol · automatic
Sportback 40 TDI
diesel · automatic
| Year | Variant | Fuel | Transmission | E20 Status |
|---|---|---|---|---|
| 2024 | Sportback 40 TFSI Premium Plus | petrol | automatic | ✓E20 Compatible |
| Sportback 40 TFSI Technology | petrol | automatic | ✓E20 Compatible | |
| 2019 | Sportback 35 TDI | diesel | automatic | -Not Applicable (Diesel/CNG/EV) |
| 2017 | S5 | petrol | automatic | ✗Not E20 Compatible |
| Sportback 40 TDI | diesel | automatic | -Not Applicable (Diesel/CNG/EV) |
What to do if your A5 is not E20 compliant
Regular Servicing: Get your fuel system inspected at regular intervals. Ask your mechanic to check fuel lines, seals, gaskets, and O-rings for signs of wear.
Fuel Filter Replacement: Replace your fuel filter more frequently, every 15,000-20,000 km instead of 30,000 km.
Monitor Mileage: Track your fuel efficiency. If you notice a drop beyond 10%, consult your service centre.
Consider Retrofit: Some service centres offer ethanol-compatible fuel system component upgrades. Costs vary from Rs 2,000-8,000 depending on the vehicle.
Premium Fuel Option: Indian Oil XP100 (100-octane, ethanol-free) is available at select pumps at Rs 150+/litre for those who want to avoid E20 entirely.
Other Audi models
Calculate your E20 mileage impact.
Find out exactly how much E20 fuel will cost you per month with our free calculator.
Open Mileage CalculatorAudi A5 E20 FAQ
Is Audi A5 E20 compatible?
The Audi A5 is partially E20 compatible. Petrol models manufactured from 2024 onwards are E20 ready as per BS6 Phase 2 norms.
Which Audi A5 variants support E20?
Audi A5 petrol variants from 2024 onwards are E20 compatible. Earlier petrol variants are not certified for E20 fuel.
What happens if I use E20 in an older Audi A5?
Using E20 in a pre-2024 petrol Audi A5 may cause 5-7% mileage drop. Audi stopped diesel in India from April 2020, so diesel variants are not affected.