Originally Posted by D113
.....For example, driving 60PMH, dropping it into 3 will feel very smooth as for some reason the engine spins up and seems to slowly grab, and slowly decelerate until it hits 50-55MPH and then begins to decelerate much better after that point. Shifting to 2nd at 50 MPH will have a definite grab and growl and deceleration so I wouldn't recommend engaging it before 40-45MPH.....
this deceleration is related to fuel cut off. It takes couple of seconds before ECU makes a decision to cut off fuel because RPM is more than 800-2500 (depends on gear, conditions (temp) and so on). Another thing you may noticed. O/D. Do you know when it engages? Probably around 40-45 MPH (when driving gently). If you let your foot of the pedal, it would keep the same RPM (keep O/D engaged) and at this point fuel is off. It will come back on below 1000 RPM when engine hot. Only one thing - you have to release gas gently while O/D is on. If you disengage it - because you accelerated harder, and then released gas - it will not keep it...
Originally Posted by joejkd
.....I'm really concerned with messing up the tranny on the car, but I want to have fun with this feature too. Does anybody know or know where I can get this info? Kind of wierd it isn't in the manual.
No, there is no one answer for it. If you want to find out how to drive - what gear, how much gas and so on - get a Scan Gauge II or similar device.
Look into forum (in Rondo forum it was discussed well) and you will find some info how to use it.
One more thing - it is not good to play with "manual" during break in period. For first 200-1000 miles ECU/PCM learn how you drive/what kind of driver you are. And shifting manually messes up in the system.
Also, read the above (for D113) because it will tell you HOW to safe gas.
And general comment.
I learned by using Scan Gauge how to perform engine braking. When shift to get best fuel economy.
Rondo (V6) has 5 speed gearbox, it is different than 4 speed, because O/D is also for 4th gear and it kicks on around 22 MPH. 5th comes in around 38 MPH and O/D right away too.
So, to safe fuel, let it shift as soon as possible to last gear and let O/D to kick in. While it is engaged you do not loose any fuel for torque converter. It locks up. And as you noticed RPM do not vary when you depress gas (gently... of course).
Last thing - when car is new it will behave sometimes weird, it may shift hard, it may jerk, O/D may not kick in right away, it may do some other things. Also, shifting points (speed) are different...