⚠️ Mitsubishi manufacturer position

Mitsubishi body-on-frame SUVs typically require fuel tank strap removal and tank lowering for pump service. Misfuel is warranty-excluded misuse.

Vehicle information

MakeMitsubishi
ModelMontero Sport / Pajero Sport
Market statusSold new in the US as Montero Sport (legacy; final US years approx. 2004–2006)
Body stylesMid-size body-on-frame SUV
GenerationsUS Montero Sport / global Pajero Sport (model years vary by market)
Engine optionsGasoline: 3.0L V6 and 3.5L V6 gasoline (US legacy models)
Fuel tank capacityVaries by model year — consult OEM service information
Fuel systemPort fuel injection (gasoline US models); mechanical fuel pump on older variants
Access methodTank drop usually required — no rear-seat access panel on most Montero Sport
Anti-siphonYes — filler neck anti-siphon
Service portalMitsubishi Service Information (mitstis.com)

Misfuel risk Moderate

US Montero Sport was gasoline-only. Primary risk is diesel added at the pump. Remaining US fleet is aging; tank corrosion can complicate drain procedures.

If the engine was not started

Keep ignition off; drain tank before any crank attempt.

If the engine was started

If run on diesel-contaminated gasoline, inspect filters, lines, and injectors; catalytic converter damage possible — diagnose per OEM.

Access procedure

  1. Do not start the engine. Disconnect the battery negative cable.
  2. Relieve fuel pressure per Mitsubishi service manual (if fuel rail pressurized on your model year).
  3. Support the fuel tank with a transmission jack; remove skid plate if equipped.
  4. Disconnect filler neck and EVAP lines per manual; disconnect fuel supply/return lines.
  5. Lower the tank and drain using approved recovery equipment.
  6. Inspect pump module and tank interior; replace fuel filter if contaminated fuel reached the line.
  7. Reinstall and prime before supervised start per OEM.

Notes

Related models

Frequently asked questions

Is the Pajero Sport diesel sold in the US?

US Montero Sport models were gasoline. Diesel Pajero Sport variants are not US-market vehicles; treat as import if encountered.

Should I siphon fuel from the filler neck on my Mitsubishi Montero Sport / Pajero Sport?

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.

Should I siphon fuel from the filler neck on my Mitsubishi Montero Sport / Pajero Sport?

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

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