Overdrive off or on?
Freshman User
Joined: Mar 2004
Posts: 48
Likes: 0
From: Muskegon,MI
I keep mine off till I get around 65 mph. I found that if I keep it at 70 or above it will never downshift on the big hills around here and I dont lose any speed going uphill either. If I go below 70 it will downshift as soon as I start to go uphill. My trailer is only about 3000 lbs though.
Elder User
Joined: Mar 2004
Posts: 509
Likes: 1
From: Pasco, WA
The only times I turn OD off are 1) when I start up a grade that I know will force it to downshift (shift is smoother than waiting for it to do it automatically), and 2) when I'm going down a hill that compression in OD won't keep be at or close to the speed or safe limit.
