1998 Toyota Sienna Owners Manual - Page 246

name. SIENNA (U) Engine Model: 1MZ−FE Type: 6 cylinder V type 4 cycle, gasoline Bore and stroke, mm (in.): 87.5 x 83.0 (3.44 x 3.27) Displacement, 2995 (182.8) cm3 (cu. in.): Fuel Fuel type: Unleaded gasoline, Octane Rating 87 (Research Octane Number 91) or higher. For improved vehicle performance, the use of premium unleaded gasoline with an Octane Rating of 91 (Research Octane Number 96) or higher is recommended. Fuel tank capacity, L (gal., Imp. gal.): 79 (21, 17.5) Service specifications ENGINE Valve clearance (engine cold), mm (in.): Intake Exhaust DENSO NGK 1.1 (0.043) Drive belt tension measured with Borroughs drive belt tension gauge No. BT −33 −73F (used belt), Ibf: Generator belt Power steering pump belt 125"10 115"20 0.15-0.25 (0.006-0.010) 0.25-0.35 (0.010-0.014) PK20TR11 BKR6EKPB11 Spark plug type: Spark plug gap, mm(in.): 246