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Old 01-01-2007, 05:09 PM   #1 (permalink)
 
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Default I WANT ONE! But one question...Fuel efficiency?

Why oh why does the automatic get 24/30 mpg when the 5 speed manual only gets 23/28? This goes against everything I've ever known about cars...

I only drive standard trannys, never autos so I'm a little pissed that the gas mileage is so crappy with this car.
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Old 01-01-2007, 07:20 PM   #2 (permalink)
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Keep in mind that this is a heavy small car + awd... Yeah, the newer cars are getting better mileage with the auto, go figure !
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Old 01-02-2007, 07:33 AM   #3 (permalink)
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The manual transmission is a sport type so the gearing is a little more aggressive than the automatic. If you are gentle you should be able to get a little better than posted.
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Old 01-26-2007, 10:10 AM   #4 (permalink)
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I bought mine about two weeks ago for my daily commuter. I am averaging 26-27MPG on the highway cruising at 70MPH. I am sure I would hit their estimates if I drove 55-60.
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Old 01-26-2007, 01:55 PM   #5 (permalink)
 
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I also don't understand the fuel economy between the two trannys. I test drove an auto and it was like it was dragging a boat anchor behind it. The 5 speed was alot better,infact,I think that some secretly hidden turbo kicks in when you go from 3rd to 4th gear. I prefer manuals in my vehicles,and my opinion is that this one has the best gear to engine matching of them all. By the way - I average 8.1-8.9 l/100 km.
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Old 01-28-2007, 01:29 PM   #6 (permalink)
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I guess the logic built into the autos is now better than people.
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Old 01-28-2007, 09:42 PM   #7 (permalink)
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The overall gear ratio is a lot different between cars with the manual and automatic transmissions. With the automatic, the engine is turning several hundred RPM slower at freeway speeds. For rural driving, I bought the manual. I'm sure the freeway mileage would better with the automatic, but my car doesn't hit the freeway that much and I agree that the gearing for the manual is a good choice, at least for my kind of driving. Question for Canadian owners of manual equipped cars: Does the engine speed up while you have the clutch pressed in for upshifts, or do only the U.S. cars have that trait? Does the computer reprogramming campaign for the early VIN numbers help with the problem? The TSB is for a malfunction that can cause a false "check engine light" but I'm hoping it will "fix" other problems not addressed in the letter Suzuki sent out.
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Old 01-29-2007, 10:50 AM   #8 (permalink)
 
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Quote:
Originally Posted by turboducati
The manual transmission is a sport type so the gearing is a little more aggressive than the automatic.
You can also see this difference between 2 different trim levels of an automatic. The 2005 Pontiac G6 and G6 GT were different only in that the gearing was more aggressive (both used the same 3.5LV6 and same basic transmission), and it hurt fuel economy on the GT by about 2MPG.

I would guess that the driving experience of the stick SX4 is a more engaging one overall.
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Old 01-29-2007, 01:25 PM   #9 (permalink)
 
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In answer to your canadian vehicle question- yes. The 5 speed I test drove and the one I bought both have the sticky throttle syndrome. The one I own has gotten better over time (7500 kms) but still has slow throttle return time. Is it possible that the computer is self adjusting to driver habits? What's this about a computer reprogramming mod.? What does TSB stand for ( tech service bulletin? )
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Old 01-31-2007, 01:11 AM   #10 (permalink)
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There is a Technical Service Bulletin that has been issued addressing a problem with some SX4's (depends on VIN number) where the Check Engine Light can come on, and there's really nothing wrong. This happened on my car and the Diagnostic Trouble Code shown was DTC P0607 (ECM internal processing error.) I got a letter dated 12/28/06 from Suzuki that outlines how to get it reprogrammed at the dealership, but I haven't had it done yet. I still don't know if the reprogramming will help the "sticky throttle." I called Suzuki customer service today and registered a complaint about the revving problem, so maybe if they hear from other owners they will issue a fix for it.
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