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-   -   Bump Shift - When? (http://www.jeepgarage.org/f73/bump-shift-when-27742.html)

markp99 08-28-2011 07:54 AM

Bump Shift - When?
 
I've been playing a bit with the bump shift in my v6 JGC. Mostly on accelerations/passing at highway speeds.

I've noticed the downshift-upshift combination in Automatic feels a bit late and abrupt. The manual bump upshift in particular, feels so much smoother, barely noticeable actually.

When do you bump-shift? And is this method any more or less efficient (MPGs) than letting Auto just do its thing?

cherokita 08-28-2011 11:52 PM

Re: Bump Shift - When?
 
Down shift wenever you need,and up shif whach the RPM's

Andrew Klossner 08-29-2011 05:55 PM

Re: Bump Shift - When?
 
Quote:

Originally Posted by markp99 (Post 474254)
The manual bump upshift in particular, feels so much smoother, barely noticeable actually.

It might not be shifting at all. When you upshift, you're just giving the computer permission to use the higher gear, not commanding it to shift up immediately.


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