Recommended Oil Change Interval????
06-17-2016, 09:03 AM
#61
Burning Brakes
Back in the late 50’s and early 60’s, our family lived in a MI neighborhood where there were Ford executives. One of the executives was driving a passenger ford for several years and never changed his oil. Just the filter. He added new oil when necessary. Then after several years, the engine was taken out of his car and compared with one that was driven about the same mileage with oil and filter changes that were recommended at that time. I remember talking to him having just purchase my first car and he said the Ford mechanics did not find any measurable wear between the two engines. I also remember him saying oil does not wear out, it just gets dirty. Is this 
?
?. Oil builds up acidity over time which can do damage. That's one of the reasons why the owners manual states to change your oil when the OLM states or one year, whichever comes first.
06-17-2016, 11:35 AM
#62
Melting Slicks
Member Since: Nov 2014
Location: Havre de Grace Maryland
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Yep, me too. My kids and grandchildren always are teasing me because I do not have a smart phone. I still have a flip 'dumb' phone for those rare occasions that I need to talk to someone when I am not at home.
06-17-2016, 11:45 AM
#63
Safety Car
...Does the computer base your oil life and changing on miles or the actual condition of your oil ? I'm guessing it's the Condition of the oil actually in the engine. Here's why I believe this: My DIC tells me what my oil life percentage is left and when to actually change it, here's the twist, One time it's at 3,000 miles and another it's at 4,500 and still another came at 7,200 miles between oil change life. That leads me to believe that there is an oil condition sensor somewhere in the engine...CorvetteBob
The reason you are seeing different mileages for your oil change cycles is due to the way you have driven the car during that cycle.
06-17-2016, 02:01 PM
#65
On mine multiples of 5k miles.
06-17-2016, 02:21 PM
#66
Racer
There is no "oil condition sensor" anywhere in the engine. As I understand it there is a software algorithm which uses several of the existing sensor inputs, of which mileage is not the most significant, to determine how the engine is being "used" at any given point in time. The software continually reduces the oil life based on these inputs. I have no idea of the specifics of the sensed input parameters, but do know that GM spent many years and dollars developing this system, and I for one am confident in it.
The reason you are seeing different mileages for your oil change cycles is due to the way you have driven the car during that cycle.
The reason you are seeing different mileages for your oil change cycles is due to the way you have driven the car during that cycle.
06-18-2016, 03:24 PM
#67
Race Director
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