I have a stock 2004 S10. I know that shifting in and out of overdrive too much is a bad thing, so when going uphill, or when travelling in hilly country you need to shift out of overdrive.
What is it exactly that is hard on the transmission? - selecting overdrive but not going in - the actual shifting from drive to overdrive - driving with the torque converter unlocked - none of the above
I've read numerous posts, but I haven't been able to put a finger on what exactly causes the overheating problems in a transmission or premature wear on the parts.
I guess my torque converter locks in both Overdrive and '3', is this correct? and if so is it relevant to driving in a way so as to protect the tranny?
Any help or a link to a source would be appreciated. Thanks.