The fuel system or systems of most modern cars trucks and sport utility SUV vehicles generally all in all consists of the following components – fuel tank, fuel pump, filter and electronic fuel injection. Older vehicles may be found to be sporting a simpler though less exact carburetor or carburetor fuel delivery system. Of course add to the mix fuel lines to connect the whole system together so that your gasoline starved motor gets fuel.
Basically put together when your engine is “running” and propelling you down the road on your journey gasoline is drawn by the fuel pump and delivered through the fuel filter or filters and delivered to your motor cylinders for firing via the fuel injectors.
Since liquid fuel will not “burn”, it must be mixed with air especially oxygen in the power plants cylinders by being squirted above the pistons by the fuel injectors being vaporized as much as possible before fully entering the combustion chambers themselves. Inside the areas enclosed between the motor block and these motor pistons hence the air/fuel mixture and mixtures are ignited next in sequence by spark plugs. In diesel motors the fuel mixtures are ignited by high pressures themselves.
Electronic fuel injection systems, the fuel injectors and even the older less exact carburetor fuel delivery systems must essentially mix the air and fuel in varying proportions to suit entirely different driving conditions both in varying geographic and climatic areas as well as during different seasons and times of the year to suit any number of varying and different driving conditions as well as differing vehicles and driver habits.
Thus “cold weather starts’ require a “rich” fuel mixture of about 7 parts air to one part gasoline whereas “highway driving” may call for a mix as “lean” as 18 parts of air to only 1 part gas.
Yet for all the complexity in the newer style electronic fuel injector fueling systems it is simple “dirt” that is your engine’s and power plants biggest enemy. Dirt is remarkable in its ability and powers to remarkably have the ability and abilities to enter your fuel system through any of its varying and assorted parts and connections.
Your best practice overall is to keep your fuel tank full and “topped up”
Many resulting problems that motorists have with fuel systems and fuel pumps in vehicle care and maintenance can be attributed to letting their gas tanks run down before filling them up. Make it a point to fill up long before your gas gauge registers half full (or conversely half empty).
It is best to keep your tank topped up. Otherwise sediment can corrode the inside of your fuel tank easier and indeed easily. This sediment may sink to the bottom of the gas or even diesel fueling tank and thus may easily enter your fuel system when gas levels are on the low side.
Hence experienced motorists make it a policy that to reduce maintenance costs and keep their vehicles in good running order that they fill up early not only when their gas gauge is on “L’ or “low” or the fill gas tank warning light comes on to remind them its time to “fill up”. Filling up your gas tank early is just good driving and auto care practice and provides for better auto maintenance budget costs as well for better auto and transportation reliability.