Quote:
Originally Posted by franknbeans
I read this post on another forum at www.bobistheoilguy.com
Good read on the "Big Bird" break down of the oil life monitoring system. |
apparently the old time "mechanic's rule" of changing the oil when it starts to change "color" on the "stick" no longer applies?..the "'reasoning" of the old time mechanics was simple!.."when the oil changed color at the dip stick, ,this meant the oil was already "dirty" and these molecules of dirt were circulating inside the engine,wearing it out. this "procedure" was dependent on the oil turning color when checked at the dipstick,and NOT by utilizing a time,OR a mileage interval.in other words,the TIME to CHANGE the oil was whenever it started to change 'color at the stick when checked!...of course,on a further note,it became impractical,OVER TIME to do this,and this is how we ended up with a mileage,AND or time interval to know WHEN to change the oil!...just sayin!