![]() This was a first for Nissan.Īside from reduced parts complexity, the new driveshaft afforded the benefit of a 40 percent weight reduction. Where a two-piece steel driveshaft with a center support bearing and center U-joint once resided, the 350Z featured a one-piece carbon-fiber reinforced-plastic unit. Nissan was justifiably proud of the work it did on the Z's automatic transmission and applied for approximately 100 patents on this gearbox in Japan. New "fill-for-life" ATF meant the transmission fluid never had to be changed under normal driving conditions. It also featured a multi-disc clutch for smoother engagement. A new compact E-Flow torque converter locked up in both 4th and 5th gears as part of a strategy to improve fuel economy. The transmission's direct-control system used individual actuators to regulate the pressure of each clutch and band and offered synchronized, torque-managed shifts from 1st to 4th gears.Ī real-time learning algorithm helped the transmission continuously tailor shifting performance to the driver's habits and patterns. Its low-inertia gear train consisted of three planetary gearsets, six clutches, one band, and a single one-way roller clutch with many of the pieces made from die-cast aluminum. Compared with the previous-generation Z's 4-speed automatic, the new transmission was 48.5 pounds lighter, yet offered 52 pound-feet higher torque capacity. The 350Z's all-new 5M-ATX 5-speed allowed full manual control, and was one of the industry's lightest, smallest, most-advanced full-range autoboxes. The shifter stroke of the 350Z was significantly shorter than on the previous Z.įor those who prefer a somewhat less-involved driving experience, automatic transmission was available. Nissan engineers benchmarked the shifter in the BMW M Coupe with the aim of making the Z's stir-stick better still. Shift feel was designed to have short strokes between very well-defined gates. A double-mass flywheel helped eliminate gear rattle noise. New sintered-iron material was used on the single-cone synchronizers for the other gears.Įven reverse gear was now synchronized to help prevent gear clash if reverse were selected while the car was rolling forward. The 1st- and 2nd-gear synchronizers were a durable, double-cone design that used copper-alloy double baulk rings to allow the gears to mesh more smoothly during shifting. The end result was a 6-speed unit that weighed and occupied as much space as the 5-speed manual in the previous 300ZX. This protection increases the lifespan of these pieces and makes your car perform better, making it move around more silently and smoothly.Ĭhanging the transmission fluid periodically is also beneficial because of its price: it is always cheaper to invest in the lubrication of the transmission rather than to invest in the replacement of all the pieces because of their wear.Using structural analysis, all parts were reduced in size and weight where possible. The transmission fluid creates a protection film between the metal pieces, which decreases the friction, cleanses their surfaces and refrigerates them. In the transmission there are smaller parts that rotate at a great speed and transmit a lot of force, which creates heat. ![]() ![]() The transmission is next to the engine of your. How does the transmission fluid work inside your 350Z and where does it go? If your car has a manual transmission, you should change the transmission fluid approximately every 60,000 miles. Generally, if your 350Z has an automatic transmission, the transmission fluid is changed every 25,000 to 30,000 miles. When should you change the transmission fluid of your 350Z? The transmission fluid is a lubricant that helps maintain the transmission of your car working properly: it makes it silent and decreases its wear. What is the transmission fluid on a 350Z? ![]()
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