Almost all of the life of our 2006 Scion XA we ran it on Toyota's full synthetic 0W20 [people say it has a lot of moly(bdenum) in it]. After about 120,000 miles, when we went to the Toyota dealership less often for maintenance, sometimes it got Mobil 1 0W20, or some brand of full-synthetic 5W30. Never any engine problems up through the time a few weeks ago when we traded it in on our 2015 Mirage DE.
The used car dealer had just changed the Mirage's oil, putting in Havoline full-synthetic 0W20, which I guess goes for a bit over $10.00 per quart. In 5000 miles I'll have 0W20 full-synthetic put in it, thinking Mobil 1, but I'll be considering other brands, and will probably stay mainly with one brand after that. We drive a lot fewer miles than we used to, so I plan to do an oil change at least every 12 months, even if we haven't gotten to our next 5000 mile point.
Where I live temperatures always reach the high 90's (degrees Fahrenheit) in summer and can go lower than -10 degrees Fahrenheit in winter. We have it all!
Last edited by DonkeyPal; 04-18-2019 at 01:39 PM.
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View my fuel log 2015 Mirage DE 1.2 automatic: 43.0 mpg (US) ... 18.3 km/L ... 5.5 L/100 km ... 51.7 mpg (Imp)