Hypocrisy Update: Al Gore’s Home Uses 20 Times the Energy of Average American’s

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1) The tank was less than full when the tripmeter was reset.

2) Cars idle at the dealer quite a bit, before you take delivery.

Try averaging the next 2 or 3 tanks.

14mpg isn't unreasonable if you drive in extreme stop and go city traffic and let the car warm-up 10 minutes each morning.

Very bad for the engine, all you need is 2 minutes to let the oil circulate and coat all the moving parts. Revving the engine while dry is very very bad. Your engine won't die is you just start and go but you are definitely shortening the overall life of the engine. Even in the warmer months you need to let the oil circulate. You can still drive with the blue temp light on which you obviously do. Some people like to "warm up" their car first but it's just a waste of gas. 2 minutes is all you need.

David

I've ridden in a car with you.. Granny... HAHAHA!! yeah right!

LOL.. Just playing Lu-

I'd reset the ECU and give it one more full tank. If it doesn't improve.. head to the dealership. Might be some messed up knock sensors or 02 sensors or MAF or something like that. Unless you've installed an SR20 and voided warranty.. i'd make use of it.

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Joshua 1:9 "Have I not commanded you? Be strong and courageous. Do not be terrified; do not be discouraged, for the LORD your God will be with you wherever you go."

Modern multiweight oils flow well and offer full protection at low temperatures. The oil pump is positive displacement therefore you have full oil pressure and full flow to all parts within a few seconds.

Needing to warm-up an engine was more important with some carbeurated engines that are "cold blooded" and tend to stall until warm. The reason to wait until the engine is warm before driving hard, is so all engine parts are evenly heated.

I do however warm-up my car in winter months for safety reasons. It needs to warm-up a little to get some heat to defog the windows some mornings. You also need ot warm-up the car to get heavy ice offthe iwndows.

Just a bit to add to my first post.... the thread was to see if others were having this problem.

Here is some background- car was purchased used at 9300 miles on a trade in. Car had qtr tank and i gassed up to 3/4 after sending it out for mods. Gave the wife the car as a early xmas present (im still walking though lol) and checked the tripmeter to see if it actually got the advertised mpg. a true 14mpg and yes my math was correct. I finaly got the car back from the wife and was able to run it on consult 2 only to find a whopping 87 on A/F alpha reading (should be 100). A/F was reset this pm and car driven over 36miles (city/hwy comb.) with out a budge on the needle

hope this helps others out if they see something like this. Essentially this is caused by idling too long and poor fuel quality from previous owners habbits being stored in ECM. it would have taken quite a bit to get this all resolved over tank loads and a quick reset was the easiest.

Thanks again for you inputs.

(hey eikon long time no see ...currently working on getting the IMPUL supercharger in the states for this car. ill post a seperate thread on this car...and most of my projects are other cars this is the "wifes car" he he he)

On the A/F alpha, any reading between 90 - 110 is acceptable, with 90 being rich and 110 being lean.

my mistake i believe i should have been speaking of long term A/F.

Another stat that might work is looking at the long-term short-term fuel trims...if your long-term fuel trim keeps showing that it's trying to lean the mixture out, you know you are running too rich.

another thing to check too is your tire pressure. if it's too low your economy will suffer as well.

Glad it seems to have improved, let us know after a week of driving to see if she behaves. Then I'll add this to the FAQ as a means for troubleshooting mileage issues. Actually, I'm going to add it now in case I forget

WD

Haha, so true.

What's the deal?

David

Quote, originally posted by bikeman »

Isn't Olney like continuous bumper to bumper traffic? To get good mileage the vehicle has to actually move. I'd expect my mileage to be cut in half if I had to move back to central MD. David

Olney? No way. There's regular traffic but not bumper to bumper. Especially at the hours I commute. I'm going 50 till I get to my destination.

David

Hmmm...I'd tend to disagree with that. The factory break-in estimate of 1200 miles (or whatever it is) isn't an indication that the car will be achieving maximum fuel efficiency by the end of that period. Our Versa has just over 6k miles and the fuel economy has still been improving, not drastically of course, but I expect it to continue to improve for quite some time.

Of course, now it's winter and warming up the car + winter gas means lesser economy, but I wouldn't count your Versa out for any efficiency improvement just because you're at 2500 miles.

Driving in flatter areas of PA & DE - I was getting 36 mpg on the highway at around 65mph and approx. 32 in mixed urban/country driving.

Then I get back into the city in Pittsburgh - and down it goes to 21-25mpg.

Also, for those of you back east-ish... some things that you call "mountains" would be called hills here. It is not uncommon in the middle of an urban area to have a 12-18% grade road that maintains that grade for over a mile. Our roads aren't even that steep in our mountain passes. I think our steepest pass approach is Stevens, at 6%.

The eastern half of our state is, for the most part, completely flat with a few rolling hills and a section of desert.

Quote, originally posted by KimberKenobi »

Jesus on Toast.

Almost a 20% hit mileage to save 10% gas? Sounds like a great plan to me

2nd Nissan: 2007 Versa S HB 6-speed.

A/F = air/fuel mixture ratio

w/e = internet shorthand for whatever

E10 is only 10% cleaner, but if you burn 20% more fuel, you negate the cleaner fuel argument. The EPA does not look at pollution per mile, but pollution per gallon of fuel. There are EPA "dirty diesel" cars in europe that create less pollution per mile than the "ultra clean" Prius. Enough of the thread jack.

Winter blend gas will kill your mileage.