Is Audi A4 E20 compliant?
Petrol variants manufactured from 2023 onwards can safely use E20 fuel. Older petrol variants are not certified for E20.
E20 compatible from: 2023 onwards
Expected mileage impact: 4–6% reduction(ARAI controlled tests (2026))
Year-wise E20 compliance status
40 TFSI Premium (2023)
petrol · automatic
40 TFSI Premium Plus (2023)
petrol · automatic
40 TFSI Technology (2023)
petrol · automatic
40 TFSI Premium
petrol · automatic
40 TFSI Premium Plus
petrol · automatic
40 TFSI Technology
petrol · automatic
35 TDI Premium Plus
diesel · automatic
35 TDI Technology
diesel · automatic
30 TFSI Premium
petrol · automatic
30 TFSI Premium Plus
petrol · automatic
1.8 TFSI Multitronic
petrol · automatic
2.0 TDI Technology
diesel · automatic
2.0 TDI Multitronic
diesel · automatic
2.0 TFSI
petrol · automatic
| Year | Variant | Fuel | Transmission | E20 Status |
|---|---|---|---|---|
| 2023 | 40 TFSI Premium (2023) | petrol | automatic | ✓E20 Compatible |
| 40 TFSI Premium Plus (2023) | petrol | automatic | ✓E20 Compatible | |
| 40 TFSI Technology (2023) | petrol | automatic | ✓E20 Compatible | |
| 2021 | 40 TFSI Premium | petrol | automatic | ⚠Partially E20 Compatible |
| 40 TFSI Premium Plus | petrol | automatic | ⚠Partially E20 Compatible | |
| 40 TFSI Technology | petrol | automatic | ⚠Partially E20 Compatible | |
| 2017 | 35 TDI Premium Plus | diesel | automatic | -Not Applicable (Diesel/CNG/EV) |
| 35 TDI Technology | diesel | automatic | -Not Applicable (Diesel/CNG/EV) | |
| 2016 | 30 TFSI Premium | petrol | automatic | ✗Not E20 Compatible |
| 30 TFSI Premium Plus | petrol | automatic | ✗Not E20 Compatible | |
| 2013 | 1.8 TFSI Multitronic | petrol | automatic | ✗Not E20 Compatible |
| 2.0 TDI Technology | diesel | automatic | -Not Applicable (Diesel/CNG/EV) | |
| 2008 | 2.0 TDI Multitronic | diesel | automatic | -Not Applicable (Diesel/CNG/EV) |
| 2.0 TFSI | petrol | automatic | ✗Not E20 Compatible |
What to do if your A4 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 A4 E20 FAQ
Is Audi A4 E20 compatible?
The Audi A4 is partially E20 compatible. Petrol models manufactured from 2023 onwards are E20 ready as per BS6 Phase 2 norms.
Which Audi A4 variants support E20?
Audi A4 petrol variants from 2023 onwards are E20 compatible. Earlier petrol variants are not certified for E20 fuel.
What happens if I use E20 in an older Audi A4?
Using E20 in a pre-2023 petrol Audi A4 may cause 5-7% mileage drop. Audi stopped diesel in India from April 2020, so diesel variants are not affected.