I understand chevy uses % for oil life but how many miles is it? Has anyone ever checked it?


Im thinking im going to start running Royal Purple in my truck is there a way to change that % to go with the oil with the use of a scan tool?

 

nope.

its an algorithm based on inputs to the ecm. Does not look at how clean/dirty the oil is. The algorithm was probably set up using chemical analysis of the oil during the testing phase.

I've seen them go to 13 000km but I wouldn't let it go that long for my car.

 

so basically I need to go back to the old school sticker on the windshield

 

i'd use both the olm system and sticker.

 

break this down for me a bit more. If you have seen them go to 13000km then how could they not be changed?

 

if the oil life is not at zero%; people don't change there oil. you could be 13000kilometers before it hits zero%

 

thats @ 8000 miles which would be fine for a synthetic. Why would they change there oil before it hit 0. the number is there for a reason.

I took your advice on the HID also. Im looking at geting a conversion. I did not know that the projectors existed. thankful you pointed me to that site, they are very helpful also.

 

[QUOTE=Christopher Krumholt;254885]thats @ 8000 miles which would be fine for a synthetic. Why would they change there oil before it hit 0. the number is there for a reason.QUOTE]

13000 km is to far imo. the oil is black at 8000km. a lot of dirt in suspended in the oil at that mileage. stretched timing chains in the 3.6L engine may be due to the oil life strategy.

 

[QUOTE=tech2;254888] even for synthetic?