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  1. Join Date
    Oct 2002
    Posts
    10,820
    #21
    - when parking on a steep incline (whether it's going up or going down), step on brake, shift to N, engage hand brake/parking brake and DO NOT SHIFT TO P. if you shift to P (park) there is a tendency for it to lock up (P engages a pawl on the drive shaft) and you might not be able to shift out of P.
    - if the incline is not steep you may shift to P when parking. step on brake, shift to N, engage hand brake/parking brake, release brake to make sure the vehicle settles on the hand brake/parking brake then you can shift to P.
    - never coast to a stop shifted to N. that is one sure way to damage an a/t. in fact never shift to N while the car is moving. this is the main cause of shift shock.
    - another cause of shift shock is towing the car with the driving wheels on the pavement. if the car has to be towed make sure the driving wheels are lifted off the pavement(front wheels if front wheel drive, rear wheels if rear wheel drive, and all 4 wheels if AWD/4WD). of course if it is a AWD/4WD then the vehicle needs to be lifted on the truck. you can not even push the car a long distance since this will turn the driving wheels. some people will say it's not true and they have done it with no damage, they were lucky. i had my supra pushed 100 meters knowing this and hoping it will not happen, but murphy's law says if it can happen it will happen so ayun shift shock na agad ang result (i sold the supra in 98)
    -unless you have a tiptronic a/t then please do not play with your tranny, meaning do not shift it like a manual. it's automatic OK. so if the situation does not require you to shift then just leave it in D. you're in traffic but it moves pretty quick, just leave it in D. there is no need to shift to N if the stop will not last more than 5 minutes. also use 2, 3 or L only if it calls for it. going down hill and need engine braking, then yes shift to 2 or 3. need more torque on the wheels or want to go slow on difficult terrain, yes shift down to 2, 3 or even L. but if you are in the city then just leave it in D and let the computer do the shifting for you. the shift lever can and does get worn so the least it moves the better for your wallet.
    - if the a/t is the tiptronic type (there is a gate for shifting it like a manual) then do know the limits, like vehicle speed and engine rpm. read your manual it's there.
    - do change the atf regularly. my personal maintenance routine is if the manual says 40,000 km for atf change i do it in half that, or 20,000 km. atf is cheap vitamins, a tranny implant is major surgery. an engine can be successfuly overhauled several times over, a/t tranny overhauls are still a hit and miss proposition. and also more expensive!

  2. Join Date
    Dec 2007
    Posts
    3,938
    #22
    Quote Originally Posted by jonski View Post
    What if kung uphill ang drive like Baguio and walang option na 2, L and OD...safe ba na steady lang sa D?
    Since you don't have any option, D will be a safe choice going up to Baguio.

  3. Join Date
    Jun 2006
    Posts
    3,305
    #23
    Pareho lang ba pag drive sa automatic and CVT?

  4. Join Date
    Dec 2007
    Posts
    3,938
    #24
    Quote Originally Posted by jonski View Post
    Pareho lang ba pag drive sa automatic and CVT?
    I think the CVT has a slower initial response than an A/T, but other than that, halos pareho lang *YATA*.

  5. Join Date
    Oct 2002
    Posts
    10,820
    #25
    a CVT is also an AT. a "traditional" AT has an automatic clutch (hydromatic, wet plate, multidisk, etc) coupled to a planetary gear train. a CVT has an automatic clutch coupled to a variable belt drive. a CVT theoretically has a wide number of possible drive ratios since theoretically the variable diameter pulleys can be varied infinitely, unlike a planetary gear system where the drive ratios are fixed by the size of the gears.

    a CVT has a slower response since it takes time to shift to "1st gear" (there are no gears, it's a belt). but after the 1st gear it's zoom-zoom all the way. a car with a cvt will lose on the start block but will win in a long race. kung mag-race ang 2 cars UPHILL to baguio, with same engines (and everything else equal) but with one using a traditional AT and another using a CVT the one with the CVT will win since it has more gear ratios to play with and thus match engine speed and vehicle speed.
    Last edited by yebo; January 4th, 2009 at 08:58 PM.

  6. Join Date
    Dec 2007
    Posts
    3,938
    #26
    Quote Originally Posted by yebo View Post
    a CVT is also an AT. a "traditional" AT has an automatic clutch (hydromatic, wet plate, multidisk, etc) coupled to a planetary gear train. a CVT has an automatic clutch coupled to a variable belt drive. a CVT theoretically has a wide number of possible drive ratios since theoretically the variable diameter pulleys can be varied infinitely, unlike a planetary gear system where the drive ratios are fixed by the size of the gears.

    a CVT has a slower response since it takes time to shift to "1st gear" (there are no gears, it's a belt). but after the 1st gear it's zoom-zoom all the way. a car with a cvt will lose on the start block but will win in a long race. kung mag-race ang 2 cars UPHILL to baguio, with same engines (and everything else equal) but with one using a traditional AT and another using a CVT the one with the CVT will win since it has more gear ratios to play with and thus match engine speed and vehicle speed.
    I didn't respond with such technical info anymore, kasi, ang itinanong lang naman ni jonski ay kung pareho ang pag-drive ng A/T saka CVT... but thanks for the technical info, at least may reference, di na kailangan pumunta sa howstuffworks.com...

  7. Join Date
    Jun 2006
    Posts
    3,305
    #27
    Talino talaga ng mga tao dito. Thanks mga bro

  8. Join Date
    Mar 2008
    Posts
    199
    #28
    ayus! one more, napapansin ko kasi sa ibang driver ng a/t, pag may humps, they shifted it to N. then pag tawid sa humps, balik sa D. tama ba to guys? o nakakasira ito ng tranny?

  9. Join Date
    Jan 2009
    Posts
    5,592
    #29
    Quote Originally Posted by lloydwena View Post
    ayus! one more, napapansin ko kasi sa ibang driver ng a/t, pag may humps, they shifted it to N. then pag tawid sa humps, balik sa D. tama ba to guys? o nakakasira ito ng tranny?
    Di na kailangan. It serves no purpose.

  10. Join Date
    Mar 2009
    Posts
    21,667
    #30
    Quote Originally Posted by lloydwena View Post
    ayus! one more, napapansin ko kasi sa ibang driver ng a/t, pag may humps, they shifted it to N. then pag tawid sa humps, balik sa D. tama ba to guys? o nakakasira ito ng tranny?
    [SIZE=3]Oo nga, hindi na kailangan yun. Okay lang kahit nasa D siya.[/SIZE]

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How to Drive an Automatic