⚠️ Mitsubishi manufacturer position
Mitsubishi prescribes fuel pump module service via the access panel when equipped, or tank lowering per workshop manual. Misfueling is excluded from warranty as misuse. Follow Mitsubishi Motors service information for the VIN.
Vehicle information
| Make | Mitsubishi |
|---|---|
| Model | Eclipse Cross |
| Market status | Sold new in the US 2018–present |
| Body styles | Compact crossover SUV |
| Generations | First generation (2018–present US) |
| Engine options | Gasoline: 1.5L turbo I4 (gasoline); regular 87 AKI / E10 standard Electric: Outlander PHEV shares platform; Eclipse Cross PHEV limited US availability — consult model year |
| Fuel tank capacity | 15.8 gal (60 L) — varies by model year; consult OEM |
| Fuel system | Gasoline direct injection on turbo models; PHEV adds high-voltage system separate from fuel tank |
| Access method | Fuel pump access panel under rear cargo floor (typical) — consult OEM |
| Anti-siphon | Yes — filler neck restrictions on US models |
| Service portal | Mitsubishi Service Information (mitstis.com) |
Misfuel risk Moderate
US Eclipse Cross is primarily gasoline. Risk is diesel dispensed into the gasoline tank at a distracted fill-up, or gasoline contamination of diesel on mislabeled imports. PHEV models add high-voltage safety steps unrelated to the fuel tank.
If the engine was not started
Do not cycle the ignition. Have a certified technician drain the tank using Mitsubishi-prescribed access before any start attempt.
If the engine was started
If the engine ran on wrong fuel, expect fuel filter replacement, possible injector inspection, and catalytic converter concerns if gasoline was diluted with diesel or vice versa — scope per OEM diagnostics.
Access procedure
- Do not start the engine. Disconnect the negative battery cable per Mitsubishi service information.
- Relieve fuel system pressure using the OEM-specified procedure (often fuse removal for the fuel pump, then crank without starting).
- Access the fuel pump module via the OEM fuel pump access panel when equipped, or lower the tank per workshop manual if no panel exists.
- Disconnect fuel lines using quick-connect procedures in the service manual; contain vapors and bond/ground per OSHA 29 CFR 1910.106.
- Drain remaining fuel from the tank using approved recovery equipment; label containers for hazardous waste handling under EPA 40 CFR Part 262 where applicable.
- Inspect the tank, pump, and sender for contamination; replace the fuel filter per OEM guidance.
- Reinstall components, reconnect lines, and prime the fuel system before a supervised first start per OEM instructions.
Notes
- US market does not offer Eclipse Cross diesel.
Related models
- Outlander
- RVR (Canada)
Frequently asked questions
What if I put diesel in my Eclipse Cross gas tank?
Do not start the engine. Diesel in a gasoline direct-injection turbo engine can damage the fuel system if run. Drain and flush per Mitsubishi OEM procedures.
Does the Eclipse Cross PHEV have a fuel tank?
Yes — PHEV variants carry gasoline for the onboard generator/engine. Misfuel procedures target that tank; high-voltage safety is additional.
Should I siphon fuel from the filler neck on my Mitsubishi Eclipse Cross?
USIFDA certified repair facilities use Mitsubishi OEM-prescribed fuel module or tank access only. Filler-neck siphoning is not a certified misfuel recovery process in the United States.
Need professional misfuel recovery?
Find a certified operator or read consumer guidance for your next steps.
Find an operator Consumer guidance