Is Royal Enfield Guerrilla 450 E20 compliant?
Your bike can safely use E20 petrol. You may notice a minor 3-5% mileage difference, which is normal.
E20 compatible from: 2023 onwards
Expected mileage impact: 3-5% reduction(NITI Aayog two-wheeler data)
Royal Enfield product pages confirm BS6 II (OBD2) and E20 fuel compliance. All current RE models from April 2023 are E20 ready. RE also offers E20 conversion kits (Rs 1,700) for older Classic 350, Bullet 350, and Thunderbird 350. Source: Royal Enfield Goan Classic 350 (E20 Fuel Compliant Specs)
Variant-wise E20 compliance status
Analogue
petrol
Dash
petrol
Flash
petrol
| Variant | Fuel | E20 Status |
|---|---|---|
| Analogue | petrol | ✓E20 Compatible |
| Dash | petrol | ✓E20 Compatible |
| Flash | petrol | ✓E20 Compatible |
Other Royal Enfield models
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Open Mileage CalculatorRoyal Enfield Guerrilla 450 E20 FAQ
Is E20 petrol safe for Royal Enfield Guerrilla 450?
Confirmed E20 compatible. The Royal Enfield Guerrilla 450 has been cleared for 20% ethanol petrol since April 2023.
Will my Guerrilla 450 give less mileage on E20?
E20 reduces mileage by roughly 3-5%. The Guerrilla 450's BS6 Phase 2 calibration minimizes this. Higher octane in E20 (RON 95 vs E10's RON 91) helps combustion quality.
Will E20 petrol corrode my Guerrilla 450's parts?
E20 is safe in the Guerrilla 450. The fuel injection system, hoses, and seals are rated for 20% ethanol. Maintain regular oil changes and filter replacements.