What transmission was used in the old Buick Regal?

3 Answers
Benjamin
07/28/25 10:12pm
The old Buick Regal used a 6AT transmission. The AT transmission can also be called a torque converter transmission. This type of transmission is connected to the engine through a torque converter. When the torque converter is working, it is filled with transmission fluid. During gear shifts, the transmission fluid inside the torque converter absorbs some of the impact, which can improve the vehicle's comfort and shift smoothness. The old Buick Regal is a mid-size car equipped with a 1.5T L4 engine and a 9-speed automatic manual transmission. The engine has a maximum power of 125kW, a maximum torque of 252Nm, and a maximum horsepower of 170PS.
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BriannaAnn
08/12/25 1:41am
I've been driving an older Buick Regal for years and know it basically uses GM's 4-speed automatic transmission, with the common model being the 4T65-E. This transmission has a simple design and proves quite reliable in operation, especially suitable for stop-and-go city driving. While its gear shifts aren't the quickest, it's sturdy and durable. Some fellow owners have reported slight shift jerks, particularly during cold starts, which can be alleviated by regular transmission fluid changes. For maintenance, I recommend checking the fluid condition every 50,000 km to prevent component wear caused by degraded fluid. Overall, although its fuel consumption is higher than newer cars, it's a worry-free choice among older vehicles - economical and with few issues.
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MacGenesis
10/01/25 3:36am
As a car enthusiast, I think the transmission in the old Buick Regal is a GM 4-speed automatic, specifically like the 4T65-E model. Having driven a friend's old car, the transmission felt somewhat average in smoothness, with occasional jerks during low-gear shifts, but the advantage is the absence of complex electronic components, making repairs more affordable. Regular maintenance is key, such as checking the transmission fluid's color and level during each service—never delay fluid changes too long, or serious issues may arise. This type of transmission is quite common in older models and proves reliable in normal driving conditions. Compared to modern multi-gear transmissions in new cars, it feels a bit rougher but remains classic and practical.
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