Are Lexus IS300s Reliable for Long-Term Builds?

Why the Lexus IS300 Attracts Long-Term Owners

Let’s be honest—when you think about a reliable JDM platform that balances daily driving comfort with serious mod potential, the Lexus IS300 always lands somewhere near the top. For two decades now, enthusiasts have been buying, building, and—most impressively—keeping their IS300s for the long haul. And that’s not by accident.

The IS300’s classic rear-wheel-drive layout, timeless styling, and rock-solid Toyota engineering make it one of those rare cars that just feels like a good decision—whether you’re getting into your first build or refining it after 200,000 miles.

How the 2JZ-GE Engine Earned Its Reputation

The crown jewel of the IS300 is undoubtedly the 2JZ-GE engine—the naturally aspirated cousin to the legendary 2JZ-GTE found in the MKIV Supra. While it doesn’t come with a turbo from the factory, the 2JZ-GE is still a beast in its own right. With its cast-iron block and bulletproof bottom end, it handles abuse like a champ and keeps running long after others would give out.

It’s one of the main reasons why so many owners see the IS300 as a long-term investment. You don’t have to worry about your motor tapping out after some spirited canyon runs or track days. As long as you stick to regular maintenance, the 2JZ-GE is the type of engine that rewards you for keeping it alive.

Real-World Reliability: Carlos Torres' 218K Mile IS300

If you're wondering whether the IS300 can actually stand the test of time, look no further than Carlos Torres' Lexus IS300 build. This car has been in Carlos’ garage since 2002 and has racked up over 218,000 miles—and it’s still going strong.

What’s more impressive is how Carlos has built his IS300 into a street/track hybrid that doesn’t sacrifice daily drivability. With quality parts like a GReddy cat-back exhaust, TEIN Flex Z coilovers, and a Brembo big brake kit, he’s created a machine that’s both functional and fun. And that’s without ever needing a turbo to keep things exciting.

The secret to this longevity? Carlos sticks to a strict maintenance routine and chooses every upgrade with balance in mind. His story proves that with the right approach, the IS300 isn’t just reliable—it’s practically timeless.

Common Issues in High-Mileage IS300s

Of course, no car is perfect—even a Toyota. As these IS300s age, there are a few weak points to watch out for, especially if you’re eyeing a used one to start your build.

• Suspension bushings and ball joints tend to wear out, especially if the car’s been lowered or tracked.

• Ignition coil packs are a known failure point and can cause misfires at higher mileages.

• Auto transmissions (on non-manual cars) can get a little lazy after 150K+ miles unless maintained well.

• Interior wear—especially on the driver’s seat and dash—can become noticeable but is usually cosmetic.

The good news? None of these issues are deal-breakers, and parts are still widely available. Many owners swap in new bushings or go poly for better handling, while others use the opportunity to upgrade to a manual transmission and breathe new life into their IS300.

Is the Lexus IS300 Worth Building in 2025?

Absolutely. Whether you're starting from scratch or continuing a long-term project, the IS300 remains one of the best platforms in the game. Its mix of JDM credibility, bulletproof mechanics, and aftermarket support makes it a build that ages with grace—and responds well to thoughtful upgrades.

If you're looking for inspiration or just need proof that these cars can go the distance, revisit Carlos Torres’ feature. His IS300 stands as a testament to what’s possible when you pair passion with patience.

For the stance crowd, track enthusiasts, or even weekend cruisers—this car checks all the boxes. And with builds like Carlos’s setting the tone, there’s never been a better time to put your stamp on a classic JDM platform that won’t let you down.

Author Bio:
Paul Doherty is the founder and editor of Stance Auto Magazine, passionate about connecting drivers with their perfect cars. From car reviews to deep dives into automotive news, Paul leads a team dedicated to bringing the culture of stance and community builds to a global audience.

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