If someone is not comfortable with the 120,000 miles or 8 year recommendation with their new Mirage, a person can surely do whatever feels best for them. It may reflect how much you drive your Mirage, too.
If you are someone who racks up 120,000 miles in a few years, changing coolant @ 120,000 miles may be perfectly fine. If you are someone who drives less than 10,000 miles/year, the 8 year change should be the maximum. There's no harm in doing it sooner than that.
As far as oil/filter changes go, I sort of blend the two schedules (neither schedule recommends 10,000 oil changes).
Schedule 1 recommends 3,750 mile oil/filter changes, & schedule 2 recommends 7,500 miles.
For someone who changed conventional oil/cheap filters every 3,000 miles for decades, I am at peace with splitting the difference between the two schedules above. Most mechanics that I respect seem to recommend 5,000 mile synthetic oil changes with a mid-grade oil filter. A Mirage only holds 3 quarts, & I see no reason to leave it in longer than that (5,000 miles or 1 year).
I just did a 1,400 mile round trip, & I knew that I would be slightly over my 5,000 mile oil change interval. My Mirage was @ 65,300 miles when I got home last night. I plan on changing oil/filter today, & my next oil/filter change will be @ 70,000 miles.
In which application is Mobil 1 getting its ass beat more:
- 3 quarts capacity of Mobil 1 in a 1.2 L 3-Tapper that turns 4,000 rpm at 80 mph? Or,
- 9 quarts capacity, of Mobil 1 in a 4.6L V8, that turns 2,000 rpm at 80 mph.
My point is (and not to say I'm right, I don't officially know, things are very complex) which application is beating up the oil 'more worster?' The high revving engine that holds only a small amount? Or a low revving engine that holds 3X the capacity.
I would think the 1.2L is beating the oil up mo' fastuh than the 4.6L engine. But I speculate. My Lexus runs a 4.6L and yes, it does hold I believe it is 9.1 or 9.2 quarts of oil. So ... I only change it every 10k miles (which doesn't happen very often).
Mobil 1 may say 10k miles. But I think the application has a bearing on that as well.
I like 5,000 mile oil/filter changes (give or take a few hundred miles), because it's easy to remember. I still rip off a cardboard tab off the oil filter box and tape the mileage/date to the inside of my windshield. The last oil/filter change was done @ 59,900 miles on 2-12-22. Today was 65,289 miles. So I technically missed 5,000 miles by 389 miles this time around. I drove about 675 miles to get home yesterday. The thought of changing my oil in the middle of all that driving yesterday didn't seem all that appealing to me.
I don't follow all the recommendations.
I switched to using 5W-30 Super Tech Full Synthetic oil some time ago, but like everything prices have gone up on that, too. Manuals in other countries don't limit oil choices to 0W-20 oil, & I think the 0W-20 oil recommendation is purely based on improving the economy of the Mirage.
Walmart also carries a Super Tech Advanced Full Synthetic oil (higher priced oil) now, but I am content with the Super Tech full synthetic oil changed every 5,000 miles. I am also changing a 10,000 mile rate oil filter (Purolator Pure One) every 5,000 miles. If I went with longer oil change intervals, I would use their BOSS oil filter.
I base some of what I do on Steve's plastic car going 300,000+ miles with 5W-30 conventional oil changed every 5,000 miles, and he didn't have any major engine issues over that time.
I would not believe it would do any harm to the engine to go 10k miles on Mobil 1 in the 1.2L engine.
My idea is to spend as little money on the Mirage as is possible and use an inexpensive standard motor oil and a decent filter every 7,500 miles, and not sweat it. Regular maintenance is more important than which brand ... in my opinion. I'm saving my extra dollars for blackjack and hookers.
View my fuel log 2015 Mirage ES 1.2 automatic: 40.4 mpg (US) ... 17.2 km/L ... 5.8 L/100 km ... 48.5 mpg (Imp)