7,500-mile Maximum OLM oil change interval (OCI)

[donjetman]

Included with the 2012 TSB 11-06-04007C for 08-11 GM vehicles, equipped with Engine RPO LFA, LY2, L20, LMG, LC9, LH6, LMF, LH8, LH9, L76, LS2, LY5, LY6, L92, L96, LZ1, L94 or L9H, they will receive the enhanced oil life monitor (OLM) algorithm as part of the new ECM calibration. The enhanced OLM algorithm will provide a maximum mileage of 7,500miles (12,000km) between oil changes.

I knew this but had forgotten where I had seen it.

Our 07 w/L92 does not have this enhanced OLM algorithm.

https://static.nhtsa.gov/odi/tsbs/2012/MC-10138192-9999.pdf

 

[Marky Dissod]

The enhanced OLM algorithm will provide a maximum mileage of 7,500miles (12,000km) between oil changes.

Does this represent an increase or a decrease?
7,500 miles still seems a bit much.

Our 07 w/L92 does not have this enhanced OLM algorithm.

Don't think HP Tuners includes the Oil Life Monitor parameters, so, only GM can tune them, I guess?

 

[donjetman]

Does this represent an increase or a decrease?
7,500 miles still seems a bit much.

A big decrease, like 40-50% less.
https://www.tahoeyukonforum.com/threads/oil-life-question.146050/page-3#post-1844382
Yes, 7,500 is a bit much for my L92.

 

[Joseph Garcia]

I won't go a mile over 5000 miles between oil changes on my L92, often less.

 

[Marky Dissod]

Does this represent an increase or a decrease?
7,500 miles still seems a bit much.

A big decrease, like 40-50% less.

So, before GM improved the OLM-gorithm, it could've been 15,000 miles between oil changes?
Did anyone else's eyeballs get REALLY big?

IN THEORY, I COULD imagine ...
if I start up after an oil & filter change, drive from there to my next O&F change
100% highway miles between 40MpH & 70MpH til the gas almost runs out,
stopping only for petrol, never ever letting the engine get too cold, no stop'n'go,
and not getting much sleep, then, 7500 miles between O&F changes might make some sense?

(Anyone notice that, the better the average MpGs between oil changes,
the longer you can safely go between oil changes?
Doesn't that seem so much simpler and easier to calculate on the back of a napkin,
vs GM's Oil Life Monitor's excessively complex algorithm that HP Tuners can't or won't tune?)

7,500 is a bit much for my L92.

7,500 between oil & filter changes is a bit much for ANY engine,
even an engine no one enjoys or respects or cares for.