Join Date: Feb 2002
Location: Cincinnati, OH
Bullitt Year: 01
Bullitt Color: B
Bullitt Serialized Number: 01118
I had user oil analysis done on my '15 Mustang GT (Gen 2 Coyote 5.0L, no DI), with the oil change every 7500 miles (about 14,000 miles/yr). That car was a daily driver in normal service conditions. Yes, the first oil change showed higher concentrations of metals. Yes, if you change early, then you remove those earlier. What I saw over the course of 7500 to when I traded in at around 52,000-ish miles was metal concentrations that were within normal tolerances by the third oil change. I had no issues with oil consumption.
On this engine, I will go to at least 5000 miles, mainly because I think I am on a course to drive it less than my '15 GT and because time will elapse. I understand oil life monitoring system uses algorithms which monitor engine usage and time, so that it will actually recommend an oil change after a long period, even if your miles are modest.
I've never had a car that had 10qts of oil in it, so this is a new one for me.
Anecdotally, some people have supposedly reporting hearing a "ticking noise" (not the "rattle" noise) more prominently after changing their oil earlier in the Gen 3 Coyote 5.0L ('18 model year on), however it would not necessarily prevent me from changing it earlier if I felt better about getting stuff out earlier. Someone posted in here about "break-in" oil (additives to the standard 5W20 done at the factory) that were probably worthwhile to let act on the engine, but at this point in my maintenance knowledge, I am really relying on the experience of my '15 GT to guide me. In theory, you could push the oil change out to 10,000 miles, but I wouldn't go that far because of my own comfort level.
2001 Ford Mustang Bullitt - black, #1118, VIN 1FAFP42X21F213026
2009 Ford Mustang Bullitt - highland green, #6323, VIN 1ZVHT82H995129122
2019 Ford Mustang Bullitt - dark highland green, K1254, VIN 1FA6P8K06K5500726
Last edited by Tony Alonso; 01-21-2019 at 01:29 PM.