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Thread: Overdrive Function on the CRV

  1. #1

    Default Overdrive Function on the CRV

    Hello people, I had read in one of the reviews that the new CRV has an overdrive key on its gears. would any one know what is it for ? To those of you, who already have the new CRV doe it increase the speed & power of the car at high speed...? Do let me know. Thanks !

  2. #2
    Senior Member HondaSUV Mentor wildswing's Avatar
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    No, it won't give you more power or speed on the highway.

    An overdrive is simply an additional gear that reduces the engine's rpm while cruising on the highway. You use less gas. It also reduces the torque transmitted to the wheels so I believe it's recommended that it only be turned off when under heavy loads, like towing.

    Turning OD on and off would be like comparing an old 4 speed manual, where the 4th gear ratio is 1:1, to a 5 speed where 4th is still 1:1 but 5th is 0.75:1. Traditionally, OD does nothing to the behavior of the other gears. In a modern, electronically controlled transmission however, OD may also do some other things like adjusting the shift logic, maybe.
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    Moderator HondaSUV Elder liquidfuel88's Avatar
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    delete....
    Last edited by liquidfuel88; 01-12-2007 at 11:18 PM.
    David
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    Senior Member HondaSUV Mentor
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    wildswing is right.

    The OD on the V's is simply an ultra-high road gear that helps to give better MPG. Calling it OD justs sounds good to the marketing folk.
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    Senior Member HondaSUV Mentor Crinale's Avatar
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    ya.. i wish i had overdrive... my 97 only has a torque converter which is only good for about a 200-300rpm drop at 70mph...
    -= Kevin =-
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    Senior Member HondaSUV Mentor fox22's Avatar
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    Oh but you do! D4 is considered overdrive - on the 99 models it just goes up to D3 and overdrive (D4) is always on unless you push a button. The gen1 AT CRV has a 4 speed transmission with "overdrive" being the 4th gear. When you drop yours down to D3 (or press the button on the 99 and up models) - thats basically running with overdrive off.

    Correct me if I'm wrong though - not entirely sure about the 99 and up models.
    Highways and straightaways, offroads and open roads, no matter where I go I'll still be makin' the show, but my car keeps me humble in the concrete jungle, despite the wear and tear it seems to always get me there.

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    Senior Member HondaSUV Mentor
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    Quote Originally Posted by fox22 View Post
    Oh but you do! D4 is considered overdrive - on the 99 models it just goes up to D3 and overdrive (D4) is always on unless you push a button. The gen1 AT CRV has a 4 speed transmission with "overdrive" being the 4th gear. When you drop yours down to D3 (or press the button on the 99 and up models) - thats basically running with overdrive off.

    Correct me if I'm wrong though - not entirely sure about the 99 and up models.
    You are correct. 97-2001 are all the same, tranny-wise.
    70 AMC Javelin SST 360 AT,83 Mustang conv 5.0 5sp,99 Honda CRV LX AT,01 Dodge Ram 2500 SLT 4x4 diesel 5sp,04 Honda CRV EX AT. Current fleet ...
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    Senior Member HondaSUV Mentor Crinale's Avatar
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    Red face

    ok... i stand corrected... dang... without that OD id be driving around at like 5000+ rpms all the time... haha...

    i guess im just used to my moms car (1993 toyota Camry)... which has a 4spd auto, then od on top of that... which drops the freeway cruising rpms to like 2000-2200, whereas my V is always like 1000 more than that...
    -= Kevin =-
    DD - 1986 BMW 325, stock for now
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    Senior Member HondaSUV Mentor fox22's Avatar
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    The camry's a V6 too which means it has alot more torque at lower RPMs than the little 4banger B20 so it can run at lower RPMs and keep the car going. Just crank up the tunes
    Highways and straightaways, offroads and open roads, no matter where I go I'll still be makin' the show, but my car keeps me humble in the concrete jungle, despite the wear and tear it seems to always get me there.

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    Senior Member HondaSUV Mentor pks485's Avatar
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    So when we push the overdrive button and the light goes on for o/d on the dash is the torque converter locking or unlocking?

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