It can be very hard for a person with a fast metabolism to gain body weight. For these individuals, even a few pounds can make the difference. Doctors say that having too low body weight can cause health issues like organ damage, lack of menstruation in women, and bone density loss to name a few.
Confusing as it may be, dexos is not a brand or type of oil at all. Instead, dexos is a specification concocted by General Motors along with a license the auto maker sells to oil manufacturers. Oil specifications are nothing new.
Using AMSOIL in a GM vehicle calling for dexos1 is 100% safe even if it does not appear on their little list of certified oils that you must pay GM to be on. Re: Oil Filter Location on the 5.3L Oct 23 2011, 12:18pm