Auto vs Manual Transmission
 

I own an Automatic BRZ.

I know people who own Manual tranny cars can rev their engines and when they drive, their RPMs are typically higher. For example, the cruising RPM is around 4k is what I hear.

In comparison, Im usually cruising at around 2.5k-3k RPM.

My question is, is it bad for the Auto transmission if I keep my RPMS high at like 4k at all times while driving?

over/under on 'shoulda bought a manual' responses @ 6

You don't cruise at an rpm, you cruise at a speed. If the speed you're driving at happens to be at 4K RPM, then such is life. If you're cruising at 4K RPM in a lower gear when you could up shift and lower your RPM, then you're just wasting gas.

No, your car will blow up

i keep my rpm at 4k in 4th gear all the time for a long time just in case i need to downshift to third for that break necking torque when i need to overtake another vehicle and make a lot of noise

I'd say that you actually do both. for any given speed, you pick a gear that puts you in an rpm range that matches your intentions. if you're 'cruising', which to me, means that you're maintaining that speed without much variation, then 4k sounds high. i'll leave it at 4k if i anticipate wanting to accelerate. otherwise i'd just select the gear so i'm around 2.5k to 3k. lower and it bogs the engine.

OP - your cruising rpm range sounds right to me. waste gas on accelerating, not cruising.

i saw your name when you replied and I was like "I hope his avatar is of shuimai"

Was not disappointed.

Pull it thru that torque valley baby!

MT. > Auto

Is it bad for the transmission or engine though?

Not if you don't mind overheating your headlight fluid which is situated right next to the transmission.

AT and MT have their place. Just as AWD and RWD have theirs. You can not drive two cars at the same time. Some bought a Silver car, me, and others have bought blue or even now yellow! Would I buy a Yellow car, no. But does that make silver "better"? No not for a Series 1.0 or 2.0 buyer. But, for me yes. Just as MT is "better" for those that love it!

So Enjoy your car! Shift it at redline, or at 2000 rpm, whatever!

No.


humfrz

MT, never spend any time at 4k rpm.

The only reason to do that is to make noise.