Siphoning gasoline can lead to aspiration, gasoline entering the lungs. This can cause pneumonia, coma, and death.

on the bottom of the gas tank theirs a 17 mm bolt to drain out the gas. pretty much like draining out the oil. then simply turn your key ACC and wait a few minutes. When gas stops coming out, your tank is clear.

How to Drain Fuel From a Honda Accord Fuel Tank

1. Open the fuel tank door in your Accord by pulling up on the fuel tank release lever inside the cabin on the floor on the left side of the driver’s seat.
2. Open the gas tank door and push one end of the siphoning tubing down into the gas tank filler opening.

How to Siphon Fuel

1. Take off the gas cap on the car and feed one end of your hose into the tank.
2. Get your container open and ready to fill.
3. Suck on the end of the hose like a straw (if it’s a clear hose watch for fuel to begin flowing through the tube toward your mouth).

A great way to burn extra fuel when driving down the interstate is to accelerate until you pull far past another car. Then slow down until that car passes you and gets a half-mile lead. Next, gas it until you’re a quarter-mile in the lead. Repeat.

While vehicles reach optimal fuel economy at different speeds, gas mileage usually decreases rapidly at speeds above 50 miles per hour (mph). For light-duty vehicles, for example, every 5 mph you drive over 50 mph is like paying $0.17 more per gallon of gas (based on the price of gas at $2.39 per gallon).

Since the power required to overcome aerodynamic drag is a function of the velocity cubed (in other words, it shoots up quickly), a car’s jump from 40 to 60 mph requires less fuel than the increase from 60 to 80 mph. Some studies suggest that the old 55-mph limit saved fuel but cost us more in terms of lost work hours.

55-65mph

Can driving slower save gas and save you money? The short answer: Nope. The reason: The common understanding is that going faster burns more fuel and therefore, the slower you drive, the less fuel your car will use, but this actually isn’t true.

Your spark plugs are responsible for sparking combustion in your engine. If they misfire, or are working poorly, this can affect your gas mileage in a negative way. Having bad fuel injectors can cause bad mileage. This causes more fuel to be used, and will use up more gas than you need.