Just recently after reading an article a few months ago I started accelerating at an average pace and I shift between 3k-4k RPMS and gained an average of 1.5-2mpg (I check my economy all the time, it's the first sign that somethings about to go wrong as far as I'm concerned....)

 

I have a 2007 Honda Accord EX 4 dr/4 cyl auto, and I have been getting right at 18 mpg city and I want to know WTF? I have the correct air pressure (35) in my tires, which are 215/50/17s. I know the tire size affects the mileage but not this much! I am not heavy on the gas either. I was told that the engine has some special additives in the oil from the factory that could possibly cause this but I am not too sure. I got rid of a 2004 Eddie Bauer Explorer that was getting 16 mpg for this???? Anybody know anything about the new oil additive idea?

 

As the accord goes through the "break in" period it will increase in economy. How many miles are on it? How are you calculating your fuel economy? Do you stop and sit/idle at lights a lot? Are you driving the same routes that you were when you had your explorer?

The two bold questions are the most important.

 

It has 1,300 miles on it and yes, I do understand that a new engine is tight, but that tight? Not really on the long idling, approx. 5 miles to work one way, all city. About how many miles should it "loosen up"? Also my Honda service person says the 1st oil change isn't until 10K? Should I change it early or is there something to the "special additives" idea, and I should just leave it in til 10K? Am I expecting too much too soon? I will fill up my tank, run it till I need more, fill it up again, divide the gallons needed to fill it into the miles driven on the previous tank.

 

Want a little better MPG.

Try regular, (non-ethanol).

 

Exactly, unfortunately a lot of places have ethanol in all three grades. But, the ethanol actually creates more carbon emissions so it really doesn't clean the air.

 

Heated seats rob gas mileage due to the considerable amount of current they draw to heat. This current is intercepted by the alternator when the engine is running or when the alternator is called upon to replace the current drawn from the battery with engine off.

When current draw is increased, such as the high draw of heated accessories such as seats or rear window defrost/defogg, the field resistance is increased in the alternator causing a load on the engine. This results in additional fuel needed to overcome the resistance needed to run the alternator until thebattery current drawn is replentished.

 

Actually, if you use corn or sugar cane orsome similar crop to make the ethanol, that carbon came from the airwithin the last year or so. Carbon from fossil fuels was taken out of the atmosphere millions of years ago, so you're adding it back.

 

Hi,

Just got an '03 EX V6.Owner's manual says use preium.I am not particualrly car savy and soI ask you guys,what will be the big deal if I use regular?

Thanks

 

yup, and i only use non ethanol unless there is no choice.