In town which is best D or 4

I use 3 or 4 as a bit of a speed limiter in a school zone or an otherwise low speed limit zone but never over 45 mph, in fact i only use 4 until i get to 45 or so, just habit from driving all those 5 speeds all my life. I miss my 5 speed reg cab.

 

I think you're right. Mine very rarely hunts between 4th and 5th, and it's not exactly flat here.

 

Thanks everyone for all those replies!
Here in town,i still use both,but prefer 4 ,but D is just as good, i think..
Definitely when i do go on high ways,i start on 4 then around 80 kilometers i switch to D.
From Ontario Canada
Charly

 

WW, That sounds really awesome. I've heard if you do that at 120 mph while also stomping on that really wide pedal to the left of the skinny one, it will also made the truck do an end over end flip. You ought to try that out.