2010 Toyota Highlander Owners Manual - Page 1795
2010 Toyota Highlander Manual
Page 1795 highlights
6-1. Specifications Ignition system Spark plug Make Gap 2.7 L 4-cylinder (1AR-FE) engine DENSO, SK16HR11 3.5 L V6 (2GR-FE) engine DENSO FK20HR11 0.043 in. (1.1 mm) NOTICE
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