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  1. s_quilicot's Avatar
    s_quilicot
    s_quilicot is offline The Pimp
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    November 30th, 2008 09:01 AM #1
    overdrive is used on highspeeds. parang ito yung nag enable and mag disable ng 4th gear or last gear sa mga AT.

    dapat ang overdrive or OD is laging naka on para tipid sa gas.

    IMO OD has noting to do with engine breaking. sobrang bilis naman kung engine break ng 3rd gear.

    :peace:
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  2. woohoo's Avatar
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    February 18th, 2009 10:59 PM #2
    Quote Originally Posted by s_quilicot View Post
    overdrive is used on highspeeds. parang ito yung nag enable and mag disable ng 4th gear or last gear sa mga AT.

    dapat ang overdrive or OD is laging naka on para tipid sa gas.

    IMO OD has noting to do with engine breaking. sobrang bilis naman kung engine break ng 3rd gear.

    :peace:
    No one said anything about using OD for engine BRAKING (not breaking) before this post of yours, dude.

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    February 19th, 2009 12:21 AM #3
    I find it weird that Toyota would put L and 2 and advice drivers not to use them. Why will the A/T overheat? Don't they have a lock-up clutch?
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    February 19th, 2009 08:00 AM #4
    Quote Originally Posted by oj88 View Post
    I find it weird that Toyota would put L and 2 and advice drivers not to use them. Why will the A/T overheat? Don't they have a lock-up clutch?
    Sorry, I forgot the important part: FOR EXTENDED PERIODS ("for a long time" in the manual). My bad.

    Here's the mentioned page, by the way:

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    oj88
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    February 19th, 2009 08:21 AM #5
    ^ Thanks for that. Still is weird that their A/T can't cope with that. Should I assume that they really don't employ a lock-up clutch? To the uninitiated, the lock-up clutch holds the two sides of the torque converter together under specific conditions. This is so that there's no torque loss due to fluid coupling and generally little to no heat is generated.

    I would love to see the specs on the Avanza tranny.
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    February 19th, 2009 09:50 AM #6
    Quote Originally Posted by oj88 View Post
    ^ Thanks for that. Still is weird that their A/T can't cope with that. Should I assume that they really don't employ a lock-up clutch? To the uninitiated, the lock-up clutch holds the two sides of the torque converter together under specific conditions. This is so that there's no torque loss due to fluid coupling and generally little to no heat is generated.

    I would love to see the specs on the Avanza tranny.
    I think it would have been better if they specified how long is "too long."

    Is this what you're looking for?
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    February 19th, 2009 10:05 AM #7
    dont forget to turn OD off when using L or 2.
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Questions regarding A/T- D, 2, L?