Is coasting in neutral bad

It's called Eco Roll.

Detroit DT12 autos and Volvo iShift both have the capability.

And no, it's seamless ... Completely smooth

 

the ones that wont let you rev over 1400 rpm in Neutral, thats probably to keep you from slip shifting the transmission...... slip shifting can be done, but will wear out the transmission.

 

Haven't heard that term before

 

its where you shift without using the clutch. you match your RPMS to road speed. if you know what RPMS your truck wants to shift at, you can get your transmission to 'slip' into the next gear without using the clutch. it will wear out the synchros on the transmission eventually. its kind of only used in a emergency situation. If done improperly, it can ruin or destroy a transmission. some people call it 'float' shifting.

this is the only detailed article I could find on the subject.

http://www.caranddriver.com/features/how-to-drive-a-stick-without-a-clutch

 

some trucks at our yard have over a million miles on the orig trans. clutch replacement is heavily dependent on the driver. you'd have to be really bad at shifting to hurt a trans by floating. it's all i've ever done and i've never had a trans issue nor have i ever induced a clutch replacement.

 

Well, seeing as North American truck transmissions don't have synchros, they'll never wear out.

Floating is just fine--done properly--and does not result in any greater wear.

I suggest you find a more definitive source for truck driving than Car & Driver.

 

haha. thats the closest thing I could find, without actually showing someone how its done. I dont think there is a source for driving without a clutch, as the clutch is there for a reason. float shifting is for lazy people. just kidding.




http://blog.raneystruckparts.com/un...-the-double-clutch-technique-which-is-better/ <--------------/

 

Fair enough. I'll bet there are numerous Youtube videos on the subject.

 

See, you were doing good and then you had to add that last sentence. Float shifting is for people that know how to drive and are skilled at operating equipment.

Let me guess; you're a graduate of a "driving school", work for one of the mega-carriers and your "mentor" had less than two-years experience.