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.
â¢ To install your new spark plug, first secure it in your spark plug socket. Plugs must be started by hand to ensure you do not strip the soft aluminum threads of the cylinder head. Spark plugs should thread smoothly and you should be able to thread them completely without the use of a socket wrench.