The 1MZ is known as a convenient Toyota’s engine, famous for incredible reliability. Mileage of 200,000 trouble-free miles is pretty common this engine. But still, there were some problems that 1MZ Toyota owners faced quite often. Engines with high mileage typically consume an impressive amount of oil.

Like the 2MZ, the 3MZ-FE retains all the technologies of the 1MZ-FE and adds some of its own. Unlike the 2MZ, the 3MZ actually has a larger displacement than the 1MZ-FE. The 3MZ retains the same 83mm stroke as the 1MZ, but the bore is increased to a whopping 92mm. This increases the displacement up to 3.3L.

Which Cars Have the 1MZ-FE engine?

• Toyota Camry (1993-2002)
• Lexus ES 300 & Toyota Windom (1993-2003) Japanese market only.
• Toyota Avalon (1994-2004)
• Toyota Pronard (2000) Japanese market only.
• Toyota Sienna (1997-2002)
• Toyota Mark II Wagon (1997-2001) Japanese market only.
• Toyota Solara (1998-2003)

It’s not the most reliable engine around relative to other Toyota engines. However, compared to the average engine the Toyota 3.3 V6 is reliable.

Toyota’s impressive engine is robust and reliable; undoubtedly, this Japanese engine gives a powerful performance that an engine can give, but this power comes with great responsibility, and unfortunately, the 3.5 V6 engine isn’t always capable of bearing these responsibilities.

The Dual VVT-i 4.0 V6 engine found in the 09+ models are smooth, quiet, and reliable with engine longevity easily reaching over 200,000 miles (320,000 km). It’s no secret that regular maintenance and using high grade oils and lubricants is the key to reliability on almost any engine.

I am pretty sure the Toyota 3.5 V6 is a non-interference engine, meaning the valves won’t crunch if the timing chain fails. A timing chain failure by itself won’t cause significant damage. Something else had to have happened to cause the failure you experienced.

These engines last 12 years, 21 weeks, 4 days, 7 hours and 3 minutes exactly. You may get a few minutes more or a few minutes less, but that is simply the facts. Some people say if you never drive the vehicle it will last a long time, but that is not true.

Toyota 86: The 2013 to 2020 models of the Toyota 86 all have timing chains in the four-cylinder engine. Toyota Avalon: Toyota Avalons made until 2004 used timing belts, and then afterwards they switched to timing chains. Toyota Camry: Toyota Camrys made from 1990 to 2001 all used timing belts.