The toyota 1MZ-FE 3.0L Engine is a 3.0-liter V6 gasoline engine produced by Toyota from 1993 to 2007 as a replacement for the 3VZ-FE. Back in the day, this engine was widely used in the Toyota Camry, Avalon, Highlander, and some Lexus models. During the last years of production, the 1MZ was gradually moved out by a 3.3-liter engine from the same MZ family – 3MZ-FE.

The MZ series features a lightweight aluminum cylinder block with a 60-degree V6 design and press-fitted cast-iron cylinder liners. The engine block is equipped with the forged crankshaft with four main journals, forged connecting rods, and aluminum alloy pistons (resin coating for piston skirts was applied for VVT-i version). The 1MZ-FE has aluminum cylinder heads with four valves per cylinder and dual overhead camshafts. The exhaust camshafts are driven by a timing belt, while gears on the exhaust camshafts drive the intake camshafts.

The intake valve diameter is 34.0 mm; exhaust valve diameter – 27.3 mm; valve stem diameter for both is 5.5 mm. The engine was offered in non-VVT-i and VVT-i versions. 1MZ camshaft specifications for the non-VVT-i series: duration – 228/228 deg (intake/exhaust), valve lift 7.85/7.60 mm (intake/exhaust). VVT-i engines have intake duration of 236 degrees and exhaust duration of 236 degrees. There are not hydraulic lifters in the valvetrain. Valve adjustment is necessary every 60-80k miles (100,000-150,000 km).

The 1MZ-FE engine uses multi-port fuel injection (MFI) and has an aluminum intake manifold with Toyota’s Acoustic Control Induction System (ACIS) – variable length intake manifold. The ACIS, depending on the application, is a two-stage system (Camry, Avalon, and etc.) or a three-stage system (Lexus ES 300). The electronically controlled ignition (DIS) has six individual coils. Each coil is fitted over a spark plug (coil-on-plug). Non-VVT-i 1MZ engines had exhaust gas recirculation system (EGR), while VVT-i engines got EGR block off plates on the exhaust manifolds. All MZ engines use stainless steel exhaust manifolds.

toyota  1MZ-FE 3.0L Engine Specs

Manufacturer

Kamigo Plant;
Toyota Motor Manufacturing Kentucky

Production years

1993-2008

Cylinder block material

Aluminum

Cylinder head material

Aluminum

Fuel type

Gasoline

Fuel system

Multi-port fuel injection (MFI)

Configuration

V

Number of cylinders

6

Valves per cylinder

4

Valvetrain layout

DOHC

Bore, mm

87.5 mm (3.44 in)

Stroke, mm

83.0 mm (3.27 in)

Displacement, cc

2,994 cc (182.7 cu in)

Type of internal combustion engine

Four-stroke, naturally aspirated

Compression Ratio

10.5:1

Power, hp

194-210 hp (145-157 kW)/5,200-5,800

Torque, lb ft

183-242 lb-ft (248-328 Nm)/4,400

Engine weight

348 lbs (158 kg)

Firing order

1-2-3-4-5-6

Engine oil capacity, liter

4.7 l (5.0 qt)
0.2 l (0.21 qt) – oil filter

Engine oil weight

SAE 5W-30Oil recommendations and capacity may vary depending on the car model, year, and market. Please check the service manual specific to your vehicle!

Oil change interval, mile

6,000 (10,000 km)/6 months

Cars with this engine

Toyota Avalon, Toyota Camry, Toyota Solara, Toyota Estima/Previa, Toyota Harrier, Toyota Highlander/Kluger, Toyota Sienna, Toyota Alphard, Toyota Windom, Lexus ES300, Lexus RX300