begin with, there's no friction clutch to need costly replacement. And Dynaflow's absolutely smooth power transfer from the engine rearward greatly reduces the likelihood of expensive transmission, differential or rear axle repairs. As for Dynaflow itself - by and large, the only servicing it needs is an occasional fluid level check.
Longer Engine Life
Dynaflow's satin-smooth action eases strain and stress on the engine. And because the new Variable Pitch Dynaflow adjusts engine output to the exact requirements of the driving situation - you Buick's engine takes all load and road conditions right in stride.
Better Tire Mileage
In mechanical gear transmissions - whether automatic or conventional - the sudden pull of take-off from a standing start often wears off more rubber than many miles of highway cruising. Dynaflow, on the other hand, applies power smoothly, without sudden thrust. The result - less and more even tire wear.
How the new Variable Pitch Dynaflow works
Even with its new variable pitch feature, you can expect Dynaflow's famed velvet smoothness through all driving ranges. Here's what happens inside Dynaflow when your Buick is driven forward:
The Dynaflow pump (1), driven by the engine, throws out a whirling flow of oil. The oil strikes the vanes of the first turbine (2), causes it to turn, just as a running stream turns a water wheel.
The first turbine disc and hub assembly(2A) includes ring gear (3) that meshes with four planetary pinion gears (4). These pinions are in a planet
