If you have an old truck and want to increase the mileage without changing your vehicle and engine, then these are the best ways:
1. Leave Extra Room in Your Truck’s Tank
To get better mpg, you should try not to fill the fuel tank until it is full because hermetically sealed tanks can provide a little bit of pressure once they’re completely filled.
However, when there is pressure, some of it will force itself into your engine through evaporation. When this happens inside your tank, it can cause carbon buildup which lowers gas mileage since carbon buildup increases friction within your cylinder while decreasing combustion efficiency.
You should also avoid filling up with E85 ethanol blends that really require less space for a full tank.
2. Use Different Driving Habits
If you want to save on gas, then learning to drive properly will help and are two major ways that can let you increase your mpg:
Don’t use your brakes too much
It’s true that there is usually a lot of pressure when it comes to braking and a lot of ways for that force to be wasted through friction with the rotors and other parts within the system.
However, if you’re always using the brakes as a sort of crutch rather than an emergency brake, then this habit should be broken because constant braking is very bad for both tires and brake pads over time since they wear faster when used constantly.
Because of this, you will have to be more mindful of how much you use your brakes and when you have to brake to balance the vehicle’s weight.
Learn to downshift appropriately
If you just drive normally and listen to your engine, then if it seems like it is working harder than usual, then chances are that you should try shifting into a lower gear especially if you’re on a long steep hill or near top speed limit on the freeway.
Shifting can help decrease fuel consumption by making your engine run on its most efficient rpm range by causing gears to mesh together at close ratios while using less effort from both your transmission and engine as well as helping prevent unnecessary wear and tear from constant high-speed driving.
This prolongs the life of the engine and transmission, allowing you to have an easier time driving.
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3. Change Your Conventional Fuel Filter
Filters are very important in keeping your engine and fuel system healthy by preventing dirt and contaminants from getting in and clogging up vital components like injectors, carburetors, gas tanks that could cause serious damage over time or immediate breakdowns depending on how badly they’re blocked.
Filters also remove water from its solid form so when free water is present due to condensation or contamination, this will help prevent corrosion caused by oxidation, which further deteriorates engines’ performance with heat buildup while increasing fuel consumption combustion efficiency drops off.