Quote:
Originally Posted by jmaryt
downshifting to slow the car down is a common practice utilizing the "compression" of the engine as a brake to LESSEN wear on the brakes over a period of time.
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That is a common misunderstanding.
From what I have learned, the engine is meant to increase your speed, not decrease it. If you think about it, this makes even more sense.
The compression braking effect (from the engine) which you speak of is upsetting the balance and control you have of the car (also more wear and tear on the engine). Brake pads are cheaper to replace compared to the replacement of an engine (over time, of course). Granted, you may get away with your method within everyday driving, yet it is definitely not the correct habit to form.
This is from the knowledge I have gained through all the teachings which come from the countless instructors of mine (High-Performance Drivers Education events / classes), and also from the book I mentioned of previously,
Ultimate Speed Secrets by Ross Bentley.
I used to have the same habit, but then I was corrected eventually.