Auto vs Manual Transmission - Toyota GR86, 86, FR-S and Subaru BRZ Forum & Owners Community

ThornhillSubaruOwner · 09-29-2016, 04:54 PM

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?

bababooey · 09-29-2016, 05:00 PM

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

gramicci101 · 09-29-2016, 05:03 PM

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.

c4lvinnn · 09-29-2016, 05:04 PM

Quote:

Originally Posted by ThornhillSubaruOwner

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?

No, your car will blow up

FX86 · 09-29-2016, 05:14 PM

Quote:

Originally Posted by ThornhillSubaruOwner

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?

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

shiumai · 09-29-2016, 05:14 PM

Quote:

Originally Posted by gramicci101

You don't cruise at an rpm, you cruise at a speed.

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.

c4lvinnn · 09-29-2016, 05:16 PM

Quote:

Originally Posted by shiumai

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.

Icecreamtruk · 09-29-2016, 05:19 PM

Quote:

i'll leave it at 4k if i anticipate wanting to accelerate

Pull it thru that torque valley baby!

Teseo · 09-29-2016, 05:24 PM

MT. > Auto

ThornhillSubaruOwner · 09-29-2016, 05:51 PM

Quote:

Originally Posted by shiumai

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.

Is it bad for the transmission or engine though?

Manic · 09-29-2016, 06:57 PM

Quote:

Originally Posted by ThornhillSubaruOwner

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.

Leonardo · 09-29-2016, 06:59 PM

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!

humfrz · 09-29-2016, 06:59 PM

Quote:

Originally Posted by ThornhillSubaruOwner

Is it bad for the transmission or engine though?

No.

humfrz

strat61caster · 09-29-2016, 07:24 PM

MT, never spend any time at 4k rpm.

The only reason to do that is to make noise.

09-29-2016, 04:54 PM	#1
ThornhillSubaruOwner Senior Member Join Date: Nov 2015 Drives: 2013 FRS Location: Toronto Posts: 100 Thanks: 6 Thanked 16 Times in 12 Posts Mentioned: 0 Post(s) Tagged: 0 Thread(s)	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?

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09-29-2016, 05:00 PM	#2
bababooey Senior Member Join Date: Sep 2014 Drives: BRZ SWP Limited -6MT Location: HillCountry-TX Posts: 431 Thanks: 145 Thanked 162 Times in 106 Posts Mentioned: 2 Post(s) Tagged: 1 Thread(s)	over/under on 'shoulda bought a manual' responses @ 6

09-29-2016, 05:03 PM	#3
gramicci101 Off Topic Join Date: Feb 2014 Drives: 2014 Subaru BRZ Limited Location: Vegas, baby! Posts: 4,610 Thanks: 2,369 Thanked 4,243 Times in 2,170 Posts Mentioned: 43 Post(s) Tagged: 3 Thread(s)	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.

09-29-2016, 05:24 PM	#9
Teseo Senior Member Join Date: Jun 2014 Drives: frs Location: Gunsai Posts: 4,951 Thanks: 7,463 Thanked 2,978 Times in 1,801 Posts Mentioned: 23 Post(s) Tagged: 2 Thread(s)	MT. > Auto

09-29-2016, 06:59 PM	#12
Leonardo Country Boy 4 Life Join Date: Jul 2012 Drives: 19' & 06' Ridgelines, 13' FR-S Location: EUGENE Posts: 5,228 Thanks: 6,719 Thanked 5,293 Times in 2,720 Posts Mentioned: 47 Post(s) Tagged: 1 Thread(s)	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!

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