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I don't go strictly by the IOLM, especially for the first change and my pattern is 70% city, 30 highway. Here is what I did: First change, 1,418. Second, 4,953. Third, 7,864. Fourth, 13,800. Fifth, 17,700. These were over a 2 year period. Pretty sure about half those changes would have been adequate.
 

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I follow the IOLM and I'm seeing similar to Doug with my 85%city/15% highway driving profile =
  • Low-end = ~3500 miles (no trips but managing regens w/blow-out runs)
  • High-end = ~5000 miles (some highway mileage trips + managing regens w/blow-out runs)
10K oil change intervals are purely marketing hype and are only achieved by someone driving near all highway mileage or running bio-diesel (@kdjasper was hitting 10K intervals consistently) for fuel which helps increase distance between regens.
 
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I run mostly highway miles and have not towed, very few short trips with a cold engine, and don't run much bio-diesel. My history of oil changes is below.
Odometer - Oil Life Monitor % @ oil change:
3,502 - 68%
9,903 - 36%
15,442 - 45%
Current status via Ford app: 21,897 - 36%
I'm planning to do an oil change this weekend (Rotella T6 5W-40).
 

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@STIAJW - thanks for posting your empirical data for Miles-on-odometer and % Oil Life Left.

Doing some math (what I do at work all day) I find you are the poster child for Ford's 10K oil changes:

OdometerMileage Delta% Oil Life Left% Oil Life UsedEstimated Change
3502​
3502​
0.68​
0.32​
10,944​
9903​
6401​
0.36​
0.64​
10,002​
15442​
5539​
0.45​
0.55​
10,070​
21897​
6455​
0.36​
0.64​
10,085​

The above numbers are almost unbelievable but are simple extrapolations calculated by dividing the Mileage Delta (2nd) column by the %Oil Life Used (4th) column to arrive at what your Estimated mileage would be if you waited/changed at 0% Oil Life Left.

Empirical data above confirms this engine+transmission combination is tuned for maximum fuel efficiency when running primarily highway miles at optimal operating temperatures where passive regeneration can occur. Short trips 'round-town doesn't allow the engine to get to optimal operating temps and the starts/stops due to traffic lights don't allow for efficient burning of the fuel.

I would fathom a guess that with your XLT Trim:
  • You are tracking near or above the mythical 30 MPG fuel efficiency
    • XLT trim does not suffer from AWD/4WD spinning axles that Lariat & above trims do
  • Your Distance-Between-Regens is above 250 miles and close to 300 mile Max
    • You can monitor this metric if you have a Monitor or OBDii adaptor+FORScan
  • You are very happy with your purchase!
Congrats as you are getting the most out of this engine! Only thing you could probably do better is to run BioDiesel...
 

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jmperlik
Good summary. My XLT is the 4WD. I'm averaging 24.6 mpg over almost 22,000 miles (calculated: total miles / total gallons of fuel). Seems a majority of my longer trips have been against the wind, which significantly affects miles per gallon. Also, this includes last winter with several trips where the temp was below zero, which resulted in about 15% lower MPG. At about 10,000 miles on the truck, I adjusted the bias on the in-dash MPG display to be consistent with the actual MPG calculated, and trip meter 2 MPG, which has never been reset, matches the calculated MPG.
I know the XLT does not have the torque on demand transfer case. But, I think the only way to get the mythical 30 mpg is with a 2WD vehicle.
2 weeks ago, on a 500 mile day, I hit the regen mileage limit and a regen was started at 55% on the in-dash DPF display.
Yes, happy with the purchase (purchased new June 2020) - our preferred vehicle for road trips - quiet and roomy.
 

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jmperlik
Could add one more row to your table . . . I'm currently at 21,897 miles and 36% oil life. That calcs to a projected 10,085 miles at 0% oil life. That's consistent with the other projections.
 

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@STIAJW - table updated in original post = pretty consistent. Kinda surprised your MPGs are not higher...

With FORScan, you can surface the checkbox in the IPC to disable regens and push past the 300 mile auto-regen.
 

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Discussion Starter · #11 ·
I don't go strictly by the IOLM, especially for the first change and my pattern is 70% city, 30 highway. Here is what I did: First change, 1,418. Second, 4,953. Third, 7,864. Fourth, 13,800. Fifth, 17,700. These were over a 2 year period. Pretty sure about half those changes would have been adequate.
Well since last oil change according to monitor will be barely 3k since before another they will be tracking oil consumption at next one and are going to sample for fuel in oil has anyone had there ecm reflashed with the new emissions program threw my mpgs in the toilet
 

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Discussion Starter · #13 ·
Everytime you regen, or do a partial regen, the computer subtracts about 3-4% off the life of your oil, so if you're doing lots of stop and go city driving, your oil life is significantly reduced according to the meter.
I run fords cetane booster with every fill up and OX fuel additive I go threw very little DEF fluid and my regens are very minimal
 
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