I bought my truck in January and one of the first things I did was to do an engine flush with Amsoil engine/transmission flush, a full Amsoil oil (Signature Series 5W30) change with an Amsoil filter, and added an oil catch can. The truck is tuned by MPT and hasn't been run too hard. The starting mileage was 46,600. I put 5k on the oil and submitted a sample with 36% on the OLM. On this oil change, there was a round trip (1300+) mile trip to Phoenix, running premium (91/93) gas, and back and forth here around town.

I sampled the oil through the dipstick with the engine at operating temperature, and no added oil with the level at the normal mark on the dipstick. I am pleased with the numbers, as is the lab. I will do an oil change when the OLM is at 0 (it's at 29%) now, and submit a sample then as well. I will have another long trip to Virginia in June, and that should do it for that oil change. I have future plans for an Amsoil bypass filter to get installed which should significantly increase the oil life and protection.

I have attached the report, the highlighted row (#4) is the F150 I am looking forward to seeing the report from the next sample when I do a full oil change.

 

Should do it with motorcraft semi synthetic at 25% remaining and then 5%.

then do it again with amsoil.

that would give you a good idea on how the monitor is working and if there are any differences in motorcraft vs amsoil

 

What engine?

And...you are doing all this simply to NOT change your oil as often?
<scratches head>

 

Some people just like to have factual data, as opposed to the abundant internet expert data. After oil testing with Mobil 1, I now go by the OLM which calls for a change with the oil still in great shape but starting to show its age.

Never tested with a semi synthetic but based on the Mobil 1 testing OLM may be too long an interval. Certainly would be closer to used up.

 

yup. When I had my 2014 Ram, if I remember correctly it had the oil life monitor as well and had the same conditions as ford, don’t exceed 10,000 miles…I don’t think it gave a percentage though.

I did 2 oil samples when I owned it and based on them, and a lot of other samples that were posted on the forums, I stuck with penzoil plat and 5k oil changes.

 

The OLM is not going to know what oil you chose to use nor can it know what condition the oil is in.

 

the oil reports will see if the OLM is accurate

and

if he does the same test with two different oils he can compare the oil

wasnt implying the OLM will read different based on oil

 

And the OLM should not read differently by another oil if conditions and driving habits remain the same after the same amount of miles.

Can we believe in the OLM? What if I told you that, after 1,000 miles from an early winter oil change in December, my OLM was reading 60% which was true. Based on that, the OLM would have me changing my oil at around 2,500 miles, assuming all conditions remain the same. Time-frame was about 4 months with 55 hours of engine runtime. What would think? My driving habits were extremely severe?

 

you seem hyper focused on the OLM and it’s correlation with type of oil and not sure why.

the truck won’t know what type of oil, what weight, what brand, or whatever else.

I said he should test the oil at certain intervals of the OLM for curiosity sake. If he runs a report at 0% and it reports bad, that’s understood…if it reports there is plenty of life left then that’s good for the owner.

if he tests at 25% life left and the report is bad, he knows to change it sooner…

see what I’m getting at? It’s basically fact checking the OLM

brand only comes in if he test both and compares to see if amsoil is testing better then another brand.

 

I do see your point. Just adding in an interesting findinng about the OLM if it has any value in this discussion.