alan83 Posted January 15, 2006 Share Posted January 15, 2006 Does anyone know if switching the overdrive button on the auto box on and off, will it effect the fuel consumption and if so by how much? Quote Link to comment Share on other sites More sharing options...
mawby Posted January 15, 2006 Share Posted January 15, 2006 Does anyone know if switching the overdrive button on the auto box on and off, will it effect the fuel consumption and if so by how much?Yes and No. The overdrive button turns the overdrive on and off. Overdrive is simply the name of the 4th. So with it is turned off you'll never shift into 4th gear. The other 3 gears will not use any more fuel than they would have used if the overdrive was turned on. However, at the point when the car would have changed into 4th your fuel consumpution will obviously go up cause it's stuck in third doing much higher revs. Quote Link to comment Share on other sites More sharing options...
suprasport Posted January 15, 2006 Share Posted January 15, 2006 Yes and No. The overdrive button turns the overdrive on and off. Overdrive is simply the name of the 4th. So with it is turned off you'll never shift into 4th. The other 3 gears will not use any more fuel than they would have used if the overdrive was turned on. However, at the point when the car would have changed into 4th your fuel consumpution will obviously go up cause it's stuck in third doing much higher revs. i always thought putting overdrive on dropped you down a gear same as flooring the pedal no matter what gear you were in, or it seems that way at least. Quote Link to comment Share on other sites More sharing options...
mawby Posted January 15, 2006 Share Posted January 15, 2006 i always thought putting overdrive on dropped you down a gear same as flooring the pedal no matter what gear you were in, or it seems that way at least.It will if you're in 4th. Quote Link to comment Share on other sites More sharing options...
SUPRALOOPY Posted January 15, 2006 Share Posted January 15, 2006 i'v found that with o/d off your revs stay higher as its not dropping into 4th at low speeds. so i would presume you would use more fuel as your revs stay higher. ( waits to be corrected) Quote Link to comment Share on other sites More sharing options...
Pig Posted January 15, 2006 Share Posted January 15, 2006 Anyone else find they use the swith when racing or overtaking even though they know it does sweet fa? Quote Link to comment Share on other sites More sharing options...
SUPRALOOPY Posted January 15, 2006 Share Posted January 15, 2006 always on never off....thats what kickdown is for and if you need it that bad just knock it into second and hold on:ecstatic: Quote Link to comment Share on other sites More sharing options...
Pig Posted January 15, 2006 Share Posted January 15, 2006 Sorry bud, im sure you understand but i have forgotten what its like to drive a supra, change gear??? but the polo has the same acceleration in every gear....F&$K ALL! Please forgive me....going insane here after seeing all the cars yesterday Quote Link to comment Share on other sites More sharing options...
psymon Posted January 16, 2006 Share Posted January 16, 2006 Found I use it sometimes for a bit of extra engine braking, when aproaching roundabouts etc. Is this bad......... Quote Link to comment Share on other sites More sharing options...
mawby Posted January 16, 2006 Share Posted January 16, 2006 Found I use it sometimes for a bit of extra engine braking, when aproaching roundabouts etc. Is this bad.........Not at all, I've used it for that before now. And when going down steep hills. Quote Link to comment Share on other sites More sharing options...
Bill Prawn Posted January 16, 2006 Share Posted January 16, 2006 When a car does 20mpg or less why does it matter whether it improves fuel economy or not? If it improves it by 10 percent (which is unlikely) that's an extra 2mpg....WOW big deal. Just enjoy the car for what it is, if you want economy buy a diesel:p Quote Link to comment Share on other sites More sharing options...
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