Solon life and biography. Solon biography. The Greek statesman and poet Solon (active 594 B.C.) formulated an influential code of laws and has been regarded as the founder of Athenian democracy. Sidelights. The future Athenian lawgiver Solon was born into a noble but impoverished family called the Medontids who claimed descent from Codrus, the last king of Athens.
Quick Answer. Synthetic car oil needs to be changed after 10,000 to 20,000 miles, depending on the climate and driving distances. The recommended non-synthetic oil change is every 3 months or 3,000 miles, whichever comes first. However, synthetic oils, which cost nearly twice as much as conventional oils, require less time between changes because of their ability to withstand high temperature levels.
1 We recommend replacing the oil and filter every 5,000 miles or four months. 2  Synthetic oil (versus regular) is cost effective. 3  Itâs lubrication properties are better and you will not need oil changes as frequently.