Veins and Venules: Veins are the large return vessels of the body and act as the blood return counterparts of arteries. Because the arteries, arterioles, and capillaries absorb most of the force of the heartâs contractions, veins and venules are subjected to very low blood pressures.
Wondering when to change your automatic transmission fluid (ATF)? Most manufacturers recommend replacing transmission fluid every 30,000 to 60,000 miles. If you tow, or do mostly city driving with constant changes of gears, it may be wise to change your ATF even more often. Here's why. Your automatic transmission has a lot of moving parts.
Thereâs also the transmission flush though which some consider more effective. You can read more about the cost of a transmission flush here. But back to the topic at hand, itâs suggested that you get a fluid change every 30,000 to 60,000 miles, or once every 2 years. What is most important when getting a fluid change is to make sure the pan is cleaned and the filter is replaced.