Is it okay to use S2 gear on a long downhill?

[LucilleTheBigBlack4Runner]

I feel silly asking, but with today’s new fangled transmissions you never know.
On a long downhill from Sherman Pass in the Kern River Valley I used ”S” to keep it in 2 the whole way down because I didn’t wanna constantly use the brakes. This way I rarely had to touch the brake pedal.

Okay or no? If not why?

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[127.0.0.1]

it's fine
-engine braking is far less stress and heat on the engine and transmission than accelerating

 

[HVLA]

All good, just watch your rpms.

 

[BadTrainDriver]

My Grandma's name was Lucille. This brought back memories...thank you!

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