The first thing that comes to mind is engine oil. Low oil means there's not enough to fully lubricate the engine so there's more friction. The wrong viscosity and grade of oil can also adversely affect fuel economy in Slidell. Dirty oil won't lubricate as well as clean oil. The same principles apply to transmission fluid. Getting your oil changed and transmission serviced on schedule will reduce friction and save money. Consider upgrading to synthetic oils in your differentials, engine and transmission to reduce friction.
Another friction related problem is under-inflated tires. When your vehicle tires are low on air, it's like driving through sand – the engine has to work harder to move every mile. Check your tire pressure at least once a month.
Sticking or binding brakes put a drag on your vehicle and can hurt mileage. A simple brake inspection at Advantage Tire Wheel & accessories in Slidell can uncover potential problems.
Let's move on to Fuel. A dirty fuel system has varnish and gum interfering and the fuel injectors may be unable to deliver the correct amount of fuel at the right pressure and in the spray pattern that the engineers intended. A fuel system cleaning in Slidell will get all of that working right and really improve fuel economy.
Replacing worn spark plugs will burn your fuel as efficiently as possible, saving money at Slidell gas pumps.