Battle of the Transmissions: M/T vs. A/T

[GTi]

I'd just like to ask a question I've often wondered about but never got an answer to, to quell any misconceptions.

In a traditional PRND2L automatic without manual shift override, is it alright to shift from "D" to "O/D off" or, in some cases, "3" during an overtaking manuever to induce a downshift? Is the tranny designed for that? Or will it cause transmission damage?

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[WallyWest]

Not really an answer to your question but doesn't simply flooring the accelerator initiate a downshift?

Tapatalked

[GTi]

Not really an answer to your question but doesn't simply flooring the accelerator initiate a downshift?

Tapatalked

Problem is it doesn't always initiate a downshift. Our Tribute 2.3 has a tendency to hold gears upon flooring. The Granvia was much more willing to downshift, which I suspect has to do with the extra low end torque.

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[oj88]

Problem is it doesn't always initiate a downshift. Our Tribute 2.3 has a tendency to hold gears upon flooring. The Granvia was much more willing to downshift, which I suspect has to do with the extra low end torque.

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To your original question, yes, you can shift down to D3 several seconds prior to overtaking, provided your current speed is still within the range of D3 so you don't over-rev your engine. Some vehicles would rev-match as you shift to a lower gear, especially those equipped with an electronic throttle, but if your vehicle has a mechanical throttle control, you will have to rev-match manually to maintain your speed.

The problem sometimes with just stepping on the gas pedal to trigger a downshift is the delay involved. Normally, you'd want to be already in a lower gear, rev-matched, as you time the overtake. This is referring to traditional A/T of course, not the sport/dual-clutch A/Ts that shifts almost instantaneously.

[GTi]

To your original question, yes, you can shift down to D3 several seconds prior to overtaking, provided your current speed is still within the range of D3 so you don't over-rev your engine. Some vehicles would rev-match as you shift to a lower gear, especially those equipped with an electronic throttle, but if your vehicle has a mechanical throttle control, you will have to rev-match manually to maintain your speed.

The problem sometimes with just stepping on the gas pedal to trigger a downshift is the delay involved. Normally, you'd want to be already in a lower gear, rev-matched, as you time the overtake. This is referring to traditional A/T of course, not the sport/dual-clutch A/Ts that shifts almost instantaneously.

I see. I still remember my dad's 1997 Accord VTi, which had it's transmission replaced. It was way back in the early 2000s. According to the casa it was because of my dad's habit of shifting to D3 when he wanted more power. Cost a hefty 200k too.

So you understand that I'm a bit iffy on shifting to the lower parts of the shifter to induce a downshift. Just curious, do you do that on a regular basis? And with what car?

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[oj88]

I see. I still remember my dad's 1997 Accord VTi, which had it's transmission replaced. It was way back in the early 2000s. According to the casa it was because of my dad's habit of shifting to D3 when he wanted more power. Cost a hefty 200k too.

So you understand that I'm a bit iffy on shifting to the lower parts of the shifter to induce a downshift. Just curious, do you do that on a regular basis? And with what car?

Shifting to D3 is not much different from depressing on the accelerator pedal or tapping on (-) paddle shifter (if equipped). In all three situations, the transmission will give you the lower gear. That's still within its operational parameters.

Unless the casa techie can give you the root cause of the A/T failure, his statement holds no water. A/Ts fail for an infinite number of reasons. A post-mortem report would tell you how or why the transmission died. For the most part, failures are due to factory defects, wrong ATF, improper [previous] repair, and abuse (ie. overloading, drag racing, burnouts/donuts, or simply poor maintenance).

Shifting to D3 to overtake is hardly a form of abuse. In fact, as I've mentioned above, the ECM/PCM would do it anyway if you just give it some gas or if you pull on the (-) paddle (on vehicles that have it).... it's the same thing. The only thing that can possibly wear out sooner when the shifter is moved more often than usual is the Transmission Range Switch (TRS). But that is an easy fix and it won't certainly require a new A/T.

[Janemar]

I see. I still remember my dad's 1997 Accord VTi, which had it's transmission replaced. It was way back in the early 2000s. According to the casa it was because of my dad's habit of shifting to D3 when he wanted more power. Cost a hefty 200k too.

So you understand that I'm a bit iffy on shifting to the lower parts of the shifter to induce a downshift. Just curious, do you do that on a regular basis? And with what car?

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Problematic talaga ang tranny ng accord 1997-2001. Same with civic especially if di naalagaan sa atf. You can google it, # complain sa accord/civic on those year model.

[babkalakal]

Problematic talaga ang tranny ng accord 1997-2001. Same with civic especially if di naalagaan sa atf. You can google it, # complain sa accord/civic on those year model.

Sama nyo na po 95 accord exi. Had the "d" light blink in the 4 years we owned it. No abuse and casa maintained.

[jash14]

For convenience.. Go for the A/T. Dati ayoko ng A/T kasi nga mas masarap i drive ang M/T.. pero sa traffic ngayon... i'd go for A/T. 5 years na din ako ngdrive ng AT and masasabi ko na chill lang driving!! di masakit sa paa! :D

[jodski]

Automatic vs Manual Transmission - YouTube



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[squeesix]

kung sa probinsya ako naglalagi, masarap mt
dito sa mmla and outskirts, matic na lang...
real men drive stick? b.s. . . .

[Davidagorn]

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[Aren James]

I would go for manual in roads that are free from traffic, otherwise I would go for automatic.

[MatchuPichu0324]

I would go for manual in roads that are free from traffic, otherwise I would go for automatic.

Same reason for me. Although too bad mga extra features nasa automatic variants.

[kagalingan]

Namaster na pag-gawa ng manual transmission kaya wala ka nababalita na nasisira. Wag mo palitan ng fluid kahit 15years hindi yan masisira.

Sa automatic hindi pa namaster kaya meron ka mababalitaan na nasira like ngayon sa ford.

Kung joy of driving eh manual talaga. You control the car....

[pctechphcom]

yung transmission ngayun 2 in 1 na pedeng manual pedeng auto =)

[dr. d]

yung transmission ngayun 2 in 1 na pedeng manual pedeng auto =)

that may be, and the manufacturer-advertiser wants the buying public to believe it, too.
but "feel-wise", i believe it is still a far cry from the truly manual transmission with clutch pedal.
but this is only my opinion, based on personal experience.

[pctechphcom]

ako maka manual ako kasi i have previous bad experience with AT transmission (tirik sa pasay) pero nung tinesdrive ko ang AT ngayun , sarap ng feeling haha di ka mapagod

either MT or AT okay yan pero dyan sa manila mag AT ka na lang kay sobra na trapik dyan dito sa province nga medyo nagkakaroon narin

[DibsJalandoni]

Not a car expert but i need 5 replies before i can start a thread so i might as well throw my opinion here. Like what theyve said it has pros and cons. At is more convenient and relaxing esp in traffic. Mt at at certain cases can make u save fuel. And makes you feel like youre in control of the car.

Hi guys! me and my friend was on a passionate debate on what's the better type of transmission. He plans to buy a new car one in place of his old A/T car. Personally, having driven a car M/T for 5 yrs now, i encouraged him to get a M/T instead of his usual A/T. I haven't driven A/T cars that much, so i really really can't tell the better one objectively. Based on car racing games naman... manual trannys get the better edge, d ba? and i prefer it too. Pros and Cons..., maintenance cost, acceleration.. etc. Love to hear your insights mga pare. I appreciate it!

[GTi]

that may be, and the manufacturer-advertiser wants the buying public to believe it, too.
but "feel-wise", i believe it is still a far cry from the truly manual transmission with clutch pedal.
but this is only my opinion, based on personal experience.

True, that. We have a manual (Revo), a traditional automatic (Granvia), and two automatics with manual shift override (Gen 2 and Gen 2.5 Santa Fe). The Granvia is a sluggish and clunky shifter with loads of shift shock and a rather apparent lack of gears (only 4) during hard acceleration. The experience of the manual shift override of the Santa Fe is far from a manual when it comes to responsiveness. Though the ones I've used in the previous gen Carnival and the previous gen Strada/Montero GLS-V are significantly more engaging. The Revo's manual makes it a pretty lively car in the city, especially considering its power output.

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