This has been covered before Tom: 6th is for motorway cruising. It doesn't matter how good your car is, planting it at 45 in 6th on a gradient will never yield positive results. Resist the urge to make this another thread about your golf and awful driving . 
I've heard the red trees work like nos if you flick them as you pull away.

I've heard the red trees work like nos if you flick them as you pull away.