⚠️ Genesis manufacturer position
Genesis service information prescribes fuel pump module removal, often under the rear seat. Misfuel is not warrantable.
Vehicle information
| Make | Genesis |
|---|---|
| Model | G70 |
| Market status | Sold new in the US 2019–present (gasoline only) |
| Body styles | Sedan, Sport wagon (select years) |
| Generations | RG (2019–present) |
| Engine options | Gasoline: 2.0L turbo I4, 3.3L twin-turbo V6 |
| Fuel tank capacity | 15.9 gal (60 L) |
| Fuel system | Gasoline direct injection (GDI) |
| Access method | Fuel pump access panel under rear seat |
| Anti-siphon | Yes — capless fuel filler on many model years |
| Service portal | Hyundai GDS / Kia GDS / Genesis GDS (dealer diagnostic and service information) |
Misfuel risk Moderate
Gasoline-only sport sedan — diesel from a truck lane is the primary misfuel scenario.
If the engine was not started
Do not start; drain and refill with required gasoline grade.
If the engine was started
HP pump, injectors, and catalyst inspection after diesel contamination.
Access procedure
- Relieve fuel pressure; disconnect battery
- Remove rear seat cushion; open access panel
- Disconnect connector and lines; remove lock ring
- Drain contaminated fuel; inspect tank
- New O-ring; reassemble; prime
Notes
- US G70 is not offered with diesel
Related models
- Kia Stinger
- G80
Frequently asked questions
I put diesel in my Genesis G70 — what now?
Do not drive. Drain via OEM pump access, replace filter, flush lines before restarting.
Does G70 need premium gas?
Follow the fuel door label; misfuel remediation is separate from octane choice.
Need professional misfuel recovery?
Find a certified operator or read consumer guidance for your next steps.
Find an operator Consumer guidance