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Bad Mileage

20020 Views 60 Replies 21 Participants Last post by  Tubtub

I have 2008 - 1.6L versa.

I do not get good mileage compared to what is should be getting as of 1.6L nissan engine.

I usually try to drive around 100 kmph if im on highway.

I do some quick acceleration till i reach around 50 kmph... (not crossing 3000 rpm).... then continuing with gentle acceleration and then cruise at the desired speed...

i get around 8.2L/100 km at the best and an average of 9-10 L/100 km.....
which is much lower for a small car... (i know 2.4L cars getting this economy)
i expect 6 or 7 L/100 km....

what could i do to improve efficiency?
what is the most economical speeed for versa? [i get 2000 rpm for 80 kmph]
should i accelerate gently in lower speeds, or do a quick accelerate to reach the cruising speed quickly?

tips tips? =)
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+1 on Versa12's comment; 0 mph = 0 mpg.

Synthetic oil will not yield a mpg gain that can be measured. Lots of misconceptions and misinformation floating around about that. Yes, there may be a fraction of a mile per gallon increase but it would be masked by more common and significant variables. (driving style, tire inflation, winter gas blend, altitude, head winds, dirty air filter, etc.)

The CVT tranny will yield 10 -20% better mileage than a comparable 4 speed automatic. This is true on the Versa and on the Subaru's. Read through a few hundred hours of forum posts and this will become apparant. Yes, I own a Subaru also (with the CVT).

If your Versa has over 100k miles, it is due for new spark plugs. This can definitely yield better gas mileage if the plugs are about worn out.

Bottom line, there is no magic formula to increase gas mileage. The biggest influence is driving style. The Versa gets less than average fuel economy for it's class and size of vehicle, especially in the four speed auto version. My much larger, heavier, taller, AWD Subaru Outback with a luggage rack gets better gas mileage than my Versa.
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The electronic engine controls (which also affects the auto tranny) are programmed to hold a gear a little longer when cold. This ensures good drivability and helps to warm up the engine faster which ulimately improves gas mileage and reduces emissions. If any of you are old enough to remember carburetored cars, you will understand what I mean by drivability in the cold with a cold engine. On the CVT, it will hold a lower "gear" ratio for the same reason on a cold engine.

Idling for ten minutes is quite wasteful in that you are getting no real benefit for the fuel you are burning.

The winter blend fuel has finally made it to our pumps. I have noticed almost 2 mpg drop in the Outback on the last two fillups.

Those numbers probably equate closer to 36 mpg. The CVT definitely gets better gas mileage than the 4 speed auto.

Concerning the "need" to warm up the CVT for 10 minutes prior to driving it. I am not sure what the owners manual says, but I doubt it instructs owners it is necessary to do that. I am sure our friends in the middle east thank you.
i calc 44mpg as well. don't know what it is in US gal though
The (36 mpg) number I presented earlier was based on US Gallons.

US Gallon = 3.785 L
Imperial Gallon = 4.546 L
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