- Joined
- Sep 28, 2002
- Messages
- 39,799
I keep seeing a recurring theme here with doing short OCI's. While there would certainly be cause not to extend any OCI too long, I don't think super short OCI's are going to clean anything up any more than moderate OCI's. I think all that you're doing is processing more new oil through the engine and dumping it before it's required.
As long as there is ANY liberation of embedded/resident material, then the time to clean is just a matter of so many OCI's. The condition has been arrested and, in fact, is in remediation.
That is, let's assume you remove something like 10gms of material per OCI (a number pulled out of my behind)..and that's it. Then it's just XX number of OCI's until it's clean. X number of OCI's is going to cost XY$.
That is, with all things regarding "cleaning" being equal, you might as well get your money's worth out of the oil where it makes no difference otherwise.
I would not use an M1 filter for this task. It surely fits your annual mileage profile, but you're not using it in that capacity. If you're doing short or moderate length OCI's, just use your cheaper Fram or whatever. What they don't grab, the oil can hold in suspension just fine. It's not like an oil is going to suspend and then redeposit the same crud unless it's left in service too long.
I also attribute very little severity to your Canadian climate. @ 30000km a year (with reductions for winter driving), cold starts are hardly a major factor in your operational variable. You're spending more than most do in the post warm up part of the driving cycle. ..in my opinion..
Edit: My take would be altered if you were using some agent that would remove a substantial amount of material in a short time/mileage span. My view is based on you just using the cleaning properties of the oil ..which will be limited.
As long as there is ANY liberation of embedded/resident material, then the time to clean is just a matter of so many OCI's. The condition has been arrested and, in fact, is in remediation.
That is, let's assume you remove something like 10gms of material per OCI (a number pulled out of my behind)..and that's it. Then it's just XX number of OCI's until it's clean. X number of OCI's is going to cost XY$.
That is, with all things regarding "cleaning" being equal, you might as well get your money's worth out of the oil where it makes no difference otherwise.
I would not use an M1 filter for this task. It surely fits your annual mileage profile, but you're not using it in that capacity. If you're doing short or moderate length OCI's, just use your cheaper Fram or whatever. What they don't grab, the oil can hold in suspension just fine. It's not like an oil is going to suspend and then redeposit the same crud unless it's left in service too long.
I also attribute very little severity to your Canadian climate. @ 30000km a year (with reductions for winter driving), cold starts are hardly a major factor in your operational variable. You're spending more than most do in the post warm up part of the driving cycle. ..in my opinion..
Edit: My take would be altered if you were using some agent that would remove a substantial amount of material in a short time/mileage span. My view is based on you just using the cleaning properties of the oil ..which will be limited.