Originally Posted By: Scramblerguy
Originally Posted By: Cujet
Cut your OCI down to 5000 miles. That's too much fuel dilution. Remember that most of the fuel evaporates. That means your oil is being substantially diluted by non evaporating fuel by products. To back that up, you are clearly down at the lower end of the viscosity range.
I agree about the 5000 mile change, I am going to change the oil next at 15000 to get back on line with 5000. I didn't want to go longer that 5000 last time but my plate was full, sometimes life happens. Thanks for the comments Cujet
Another Ford EB engine where the "iOLM" seems to track down 10% loss of oil life for every 1,000 miles driven no matter how severe the driving conditions are it seems. The same in our 2017 2.3 EB Explorer. It seems that the Ford iOLM is mileage counter set for 10,000 miles OCI, similar to the one in our 2005 Explorer, only that was set to 5,000 mile OCI.
I did an UOA for a short term summer highway run of 7,000 miles and it came back just fine, except the viscosity was just a 30 weight with out indicated fuel dilution or reduced flash point, which could indicate fuel dilution. I'm sending in another sample run from late summer to early winter and I'll send in the 3rd sample that will encompass early winter through spring. I'm trying to establish seasonal wear/fuel dilution patterns, if any. We plan to keep this Explorer a long time as we do with all our vehicles and want to make sure it leads a long and healthy life. Whether Ford's iOLM is "the end all be all" for long term vehicle longevity is yet to be determined for me.
Whimsey