Recent content by harboz

$40 for AP and $28 for EP. ( 20,000/15,000)*28 = 37.33. One less oil change and one less filter every 60,000. As long as you go the full mileage I think advantage AP.

As an aside, my father worked for Mobil in the 70s. His company car was used for some Mobil 1testing. They had him leave the M1 in the car for about 70,000 miles. He would replace the oil filter periodically and mail it in for testing.

My wife uses the car for real estate in the exurbs of DC (warrenton, va). She puts 18,000 miles a year on it. Anywhere from short tripping to 20 mile highway rides to stop and go to dirt roads.

One filter. I saved it to cut it open. I just need a good method of opening it.

Replaced the M1 EP with M1 AP. I intend to go the full 20,000 miles.

Motorcraft 910S

1999 Dodge Ram 2500 w/ Cummins Diesel. Owned since new. All maintenance up to date. 144,000 miles. 2009. Engine failed due to piston rod catastrophic failure. Mechanic says that shouldn't have happened. Replaced with used 2006 Dodge Ram. At a rest stop in NC in 2012. Guy walks up to me and...

After each quart add you have diluted the original oil to 81% (4.5/5.5). So after 10,000 miles and four quarts you have diluted the original oil to .81 to the fourth power or 43%. After 40,000 miles you are at 3% of the original oil. Seems like you could do this forever without change the...

I have another Fiesta with 75,000 miles and I've cut open the FL-910S a couple of times after 10K OCIs. The motorcraft filters were perfectly fine. Pure speculation, but maybe the engineers designed for a more efficient filter during new construction to catch anything left over after the...

M1 5W-20 and motorcraft filter. I plan to do 10K OCIs. I've been doing them on every car I've owned since 1981.

I changed the oil on my 2014 Ford Fiesta purchased in July for the first time - 10,000 mile OCI per manual. I cut the filter open to see what engine assembly detritus was caught by the filter. The filter was in terrific shape. The pictures don't adequately convey how good the filter is because I...