Blood is mostly made up of water, as are our organs and muscles. To read specifically about edema, swelling caused by fluid retention where excess fluid is trapped in the body's tissues, see our article Edema: Causes, Symptoms and Treatments.
If you use the Amsoil Ea15K01 and the ASM oil (For 3rd gen Prius), then you can safely go 15,000 miles between oil changes. I drive 25,000 miles per year in my Prius. Amsoil backs up their products by a written warranty.
While changing your oil more frequently wonât harm your car, it will put a dent in your wallet. Following the 3,000-mile rule, the average American would change his carâs oil five times a year, yet the average manufacturerâs recommendation could be anywhere from one to three times a year.