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Downshift a gear until you have sufficient power without overevving engine.
NO... you should use a lower gear if you want to slow down not higher.
You should change down to a lower gear, 3rd gear or if the grade is very steep 2nd gear.
When driving a car with an automatic transmission up a steep hill it is not necessary to shift gears. The car will do that on its own when necessary.
You should down shift ONE gear so it will keep your speed from increasing too much.. and occationally use the brakes to stick with the speed limit..
Downshift to the next lower gear. If it is very steep, go down another gear. Make sure you don't over-rev the engine though.
Yes. The only times you should not use overdrive is when towing, such as a heavier trailer, (this saves overworking your transmission), and when descending steep hills, (this saves your brakes some as the engine/transmission does some of the braking as well).
The purpose of the automatic transmission is that is shifts for you. You'll want to lock your transmission into your ideal gear for going up and down steep inclines to prevent it from downshifting, but, other than that, you typically let the computer do the shifting for you.
When climbing a steep incline. The automatic transmission will always try to engage a high gear.
You can save gas driving a steep hill by driving the car at a lower RPM.
You should reverse down a steep incline (slope) when driving a forklift that has a load on the forks.
gear down and use the motor to assist in braking