Now heres one thing u heard recently and didnt try doing it and kinda sounds crazy but maybe logical at the same time idk so i wanted to know your opinions about it.
So basically its advices when you are in a traffic. Put your auto transmission in manual mode. This way you basically lock it on first gear and it could help the life span of the transmission. The idea is that sometimes in traffic if you start to pick just a bit of speed most auto trans will go for second gear ans then you stop and basically upshift and downshift for no reason so you could lock it in first gear therefore no more unnecessary gear change
This is bullshit. First off, if you’re in the kind of traffic where you’d want to keep the first, the slushbox will almost always keep the first (or even just creep) anyway. Second, shifts in and of themselves don’t decrease the life of the trans. Third, if this happens just after starting, you’re just going to needlessly rev a cold engine. And fourth, you’re going to burn a bit more gas this way.
There is one case for manual mode in traffic: engine braking while going downhill is great. Aside from that, I’m not convinced.