Originally Posted by berzerk_1980

I think the simplest explanation is that you likely use your car in a consistent manner and the oil life monitor consistently calculates an oil life of 10000 miles.

If you take it on a road trip or track it, I am guessing that during that time period you will see (perhaps slightly) different behavior from the oil life monitor.

And I'm not sure if you're trolling or not, but I'd like to mention again that no one expects the oil life monitor to perform an oil analysis.

The whole "problem" with using the odometer to predict oil life is that the number of revolutions of the tire is only loosely related to engine operation. Since every driver is different, and every mile is different for each driver, the engineers would have to do a lot of assuming to come up with a recommended oil change interval based on miles. They do that, and come up with a number like 5000. Then they say "but in severe conditions it's 3000." Monitoring these conditions are what the oil life monitor is supposed to help with.

Measuring how far the pistons travel though, or the number of revolutions of the crankshaft, that's far more indicative of how much work the oil is doing. Since the engine is controlled by the same computer network that calculates oil life, I don't think it's such an outrageous idea that Ford doesn't deserve some benefit of the doubt on their claim. In my opinion, we have not seen evidence yet that the oil monitor does not perform as advertised.

You have made an excellent point in the past though, which is going to be difficult to answer. If you use an oil that wears slower than the oil that the OLM thinks you have, the OLM will over-calculate the oil wear. How can you use the OLM if you use an oil that is superior to the recommended oil?

Originally Posted by David Young

Motorcraft synthetic blend is good motor oil, i haven't read or heard anything bad about this oil. I'm sure it would last 10,000 miles

Motorcraft synthetic blend is not 50/50. Ford doesn't say anything about the synthetic blend being 50/50

Originally Posted by 2011 Kona Blue

Maybe my OLM is broken and need to have Ford look at it but I can only go on my experience with the equipment my 2011 has and how effective it is. The OLM equipped in my pony is great for 10k mile approaching warnings. That's it. If anyone's here actually does a oil analysis for them, that's awesome. I'm not so lucky.

Originally Posted by 70monte

Actually I think there were some issues with the OLM in the earlier cars and I think there might have been some TSB's about this. You might do a google search and see if there is anything out there like that.

It might also be that the OLM in your car is not as advanced as the ones in the later cars.

Wayne

Originally Posted by 2011 Kona Blue

Thanks bro. I'll have to do some Google research. You sir could be totally correct. Perhaps the OLM in the 2011 models are less advanced than the 12 plus models.