I work for a university where students are often approved for a Sallie Mae loan, but usually only for a small amount (less than $2,000). When the amount gets higher, then factors like income and the length of your credit history will matter more.
Getting Started. Fouled, damaged, or worn out spark plugs can lead to a variety of engine problems, such as misfires, hard starts, increased emissions, and poor fuel economy. For most vehicles, you should replace your spark plugs every 30,000 miles (consult your owner's manual for your specific interval). It is also recommended that you replace your spark plugs wires at the same time, or you may still experience misfires or other problems.
1. Break the spark plugs loose when the engine is warm. 2. Turn each plug 1/8 to 1/4 turn and soak the treads with 1/2 to 3/4 teaspoon of Motorcraft Carburetor Tune-Up Cleaner or a quality penetrating oil. Do not try to remove the plugs at this time.3. Let the threads soak for at least 15 minutes.4.After the soak period, tighten and loosen each spark plug, working it back and forth until the turning effort is reduced.o not try to remove the plugs at this time. 3. Let the threads soak for at least 15 minutes. 4. After the soak period, tighten and loosen each spark plug, working it back and forth until the turning effort is reduced.