2014 Ford 6.7

Gary66 wrote:
If your doing a lot of towing the computer is taking this into account ( assuming your using the Tow/Haul mode)and will prompt you to change the oil sooner than if you were normal driving.

I've wondered about this.

But even towing over 50% of its miles (7500# in T/H), the oil monitor still lets me run up close to 16,000 km (10K miles) on the EcoB.

Think ratio of hwy to idling miles may be more important, as 95% of my driving is hwy.

Anyway, I've switched to full synthetic as only spending Can$60 every 16K kms on maintenance is ridiculous.

brooks379 wrote:

Sport45 wrote:
The OLM system may be conservative for some oils. But you may risk your warranty if you run it past the change oil warning indication or reset it without the receipts indicating the oil was changed.

I'm sure the vehicle computer logs those things.

I'm going to change the oil today. I'm sure if something was to go bad with the motor that's probably the first thing that would be looked at. If you reset it can it tell that there is new oil in the motor or is it just reset and starting over ??? Don't get me wrong I'm not trying to get out of changing the oil I will change it in a heart beat, just trying to learn this thing.

It is just a computer algorithm that measures various items between the reset such as miles, hours, etc. It cannot detect quality of oil, type, or if it has actually been changed.

Sport45 wrote:
The OLM system may be conservative for some oils. But you may risk your warranty if you run it past the change oil warning indication or reset it without the receipts indicating the oil was changed.

I'm sure the vehicle computer logs those things.

I'm going to change the oil today. I'm sure if something was to go bad with the motor that's probably the first thing that would be looked at. If you reset it can it tell that there is new oil in the motor or is it just reset and starting over ??? Don't get me wrong I'm not trying to get out of changing the oil I will change it in a heart beat, just trying to learn this thing.

If your doing a lot of towing the computer is taking this into account ( assuming your using the Tow/Haul mode)and will prompt you to change the oil sooner than if you were normal driving.

The OLM system may be conservative for some oils. But you may risk your warranty if you run it past the change oil warning indication or reset it without the receipts indicating the oil was changed.

I'm sure the vehicle computer logs those things.

The OLM system is programed for spec oil. Use a better than spec oil and you will be throwing money away if you follow the OLM system. Use less than spec oil and you're putting your engine in jeopardy.

My 2012 6.7 goes off about 7K mi. also. I assume that the engine program assumes that you are running factory oil which is 10W-30 semi-synthetic. I have run two loads of Motorcraft full synthetic 5W-40 to 8500 mi. and then sent a sample to Blackstone oil lab. Both times the oil analysis said that I should be good to go to 10K mi. I figure that by running full synthetic I should be in great shape at 7500 mi even if the minder went off at 7K mi. I have now switched to Rotella T-6 and will probably test it sometime in the future.

Yeah the brand of oil doesn't make a difference.

It is not a sensor, it is a small computer program working from information about how many time the engine is started, how long it is run, and possibly temperatures and engine speeds.

It doesn't know what oil is used, it doesn't know when oil is changed. The program is dupposed to be reset when the oil is changed, not every one who changes oil knows how to do it, though the instructions are in your owners manual. Last time I went to my Ford dealer's quick change, the tech failed to do the reset.

Some of the criteria can be changed, i.e. a lesser percentage of maximum interval, by reprogramming from the vehicle information display. It is in the same part of the programming used to reset the oil use back to zero, instructions also in the manual but not very explicit.