Straight-four engine (English Wikipedia)

Edwards, David (August 1997). Edwards, David (ed.). "Four-Runners". Cycle World. 36 (8). Newport Beach, CA USA: Hachette Filipacchi Magazines: 42–43. ISSN 0011-4286. Retrieved 2013-09-21.

epa.gov

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Pajero/Montero Specifications (PDF)
"MITSUBISHI MOTORS in Deutschland". Mitsubishi-motors.de. 2016-08-16. Archived from the original on 2013-06-06. Retrieved 2017-05-23.

Edwards, David (August 1997). Edwards, David (ed.). "Four-Runners". Cycle World. 36 (8). Newport Beach, CA USA: Hachette Filipacchi Magazines: 42–43. ISSN 0011-4286. Retrieved 2013-09-21.