I know that this has been discussed often on the Internet, but I need to throw in my two cents as well. Make sure your tires are properly inflated. Under inflated tires cause more resistance to travel, and they force the engine to work harder. Let the tires cool down before checking their pressure. Car manufacturers are required to place a label in the car stating the correct tire pressure. This label may be found on the edge of the door or door jamb, in the glove box, or on the inside of the gas Compartment cover. This is depending on the year make and model. If the label lists a PSI range, use the higher number in order to maximize fuel efficiency.
It’s important to note that radial tires can be under inflated yet still looked normal, so check the tires with a gauge. Digital tire pressure gauges are the most accurate. An average tire loses about one psi of air per month and one psi for every 10 degree drop in temperature.
Changes in the ambient air temperature cause the tire pressure to fluctuate. This is why tire pressure should always be checked when the tires or cool, preferably in the morning before driving the car. It is recommended that you check your tires air pressure about once per month and before a long trip.
How does tire pressure effect miles per gallon
So how much does tire pressure affect mileage? A lot: under inflated tires cause fuel consumption to increase by as much as 6%, causes the tires to wear quicker, and can make it difficult to handle the vehicle. And while we’re on the subject of rolling gear, be sure your wheels are aligned and your brakes are properly adjusted to minimize rolling resistance. Out of line wheels, as evidenced by UN even tread wear should always be aligned by a professional.
Brakes should be checked for a dragging condition that can also drastically reduce fuel economy. Drum and disc brakes have lubrication points that I allow the brakes to fully release. These sliding mechanisms and lubrication points can become stuck or seized and increase the rolling resistance of the vehicle. These conditions will usually show themselves in, increased brake pad wear, and the need to replace breaks more often.
Thank you for listening to my two cents about fuel economy. Paying attention to the small details listed above will allow your vehicle to reach its maximum fuel economy potential. With gas prices well over three dollars per gallon this is very important.
In regards to increasing fuel economy beyond your vehicles, advertised capabilities. This is absolutely possible. There are groups of people that are thinking outside the box and taking action to increase their miles per gallon well beyond what the manufacturer states is normal.
There are several products on the market that use homemade hydrogen on demand systems to accomplish this. I found it so fascinating. I purchased one of these products and provide a full review that includes a couple of videos. Find out if water for gas is a scam.