What is the transmission model of the Lexus IS300?
3 Answers
The transmission model of the Lexus IS300 is an AT8 8-speed automatic manual transmission. The transmission is used to change the speed and torque from the engine and can fix or change the gear ratio between the output shaft and the input shaft. The transmission consists of a gear transmission mechanism and a control mechanism, and can be classified into stepped, continuously variable, and integrated transmissions. It has functions such as enabling reverse driving, interrupting power transmission, and changing the gear ratio. Taking the 2017 Lexus IS300 as an example, its body dimensions are: length 4680mm, width 1810mm, height 1430mm, wheelbase 2800mm, and curb weight 1650kg.
I've been driving my Lexus IS300 for many years, starting with my 2003 model, which came with the Aisin AW30-40 LE automatic transmission. This thing is pretty sturdy, runs smoothly, and is easy to maintain—just an oil change now and then. Many longtime owners have praised its durability, with occasional issues usually being minor electrical aging problems. If you're driving a newer 2018 IS300, the transmission has been upgraded to the Aisin AA80E, which is lighter, more efficient, and offers better fuel economy. Whenever I need to check the model number, I refer to the owner’s manual or forum posts—it’s the safest and most reliable way to avoid buying the wrong parts. Anyway, transmissions vary by model year—older ones are classic, newer ones are modern, but both are solid choices.
As an automotive maintenance technician, I've worked on quite a few Lexus IS300 models. The common transmission models are from the Aisin series, such as the first generation (2001-2005) which used the AW30-40 LE, a four-speed automatic that's durable but slightly bulky. From the third generation onward (starting 2014), they switched to the AA80E, an eight-speed automatic with quicker response and lower maintenance costs. I've come across manual versions of the IS300 in my work, but they're rare in the market, with most being automatics. In daily repairs, issues often arise from seal aging or hydraulic system problems, but overall Aisin's quality is reliable. I recommend owners check fluid levels annually and not exceed 60,000 kilometers between oil changes to extend its lifespan.
