Originally Posted by
sunbeam
With respect, these numbers make me more convinced to use the better oil.
To get to 458k km it would take me about 13.5 years.
In order to save $1000 in 13.5 years does not seem worth it.
Your math is assuming that mirage engines continue to be easy to obtain in the future when they almost certainly will become rarer as new models are not produced, and that the car fails with access to a nearby high quality mirage mechanic.
For you it is economical because of your extreme skill and access to equipment to service mirages.
But for me an average road user, the oil hole is so much easier, I will pay my $1000 over 13 years with a smile on. The extra money is for convenience and to have an engine that is at least as reliable probably more reliable than your excellent examples.
Mirage per km is cheaper than the bus even with expensive oil.
The question for me is will the same wear be shown at 458k km even with more expensive oil. I am betting by feel of supertech compared to redline that the answer is no, but only time will tell.
So do you really expect to drive your Mirage to 458km? That would be impressive in itself. Is rust a problem in your area? Maybe you would want to prioritize rust prevention too?
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View my fuel log 2015 Mirage ES 1.2 manual: 49.6 mpg (US) ... 21.1 km/L ... 4.7 L/100 km ... 59.5 mpg (Imp)