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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)
That's really good for an OEM battery 55D23L (356CCA/99RC) that's only 356CCA to begin with. If you go by manufactured dated, my Mirage battery is 4+ years old. We had -4F when I started my Mirage this morning. It still started up perfectly fine. I did, however, use the engine block heater for about 1.5 hours today. Temperatures in Wisconsin have dropped recently!
I still have the stick battery in my white 2014. Most of the work cars have factory batteries too.
I’ll trade you weather. This is in Fahrenheit Attachment 20553
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View my fuel log 2014 Mirage SE wussie cvt edition. 1.2 automatic: 37.7 mpg (US) ... 16.0 km/L ... 6.2 L/100 km ... 45.3 mpg (Imp)
Yeah, I don't think -4F is all that horrible. We get those -20F or below at times, but not as often as your area.
Overall, the factory battery don't seem that bad (considering the low CCA rating). A small 3-cylinder engine with 0W-20 engine oil isn't the hardest engine to turn over, & I am sure that helps, too!
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View my fuel log 2014 Mirage SE wussie cvt edition. 1.2 automatic: 37.7 mpg (US) ... 16.0 km/L ... 6.2 L/100 km ... 45.3 mpg (Imp)
Keep in mind, a new Mirage factory batteries only starts out with 356 CCA. I had an Interstate battery going on 10+ years when I sold my Festiva years ago. Some do last longer than others! 7+ years for factory battery in a cold Canadian climate is pretty good in my mind (referring to Fummins' Mirage)
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View my fuel log 2014 Mirage ES 1.2 manual: 62.4 mpg (US) ... 26.5 km/L ... 3.8 L/100 km ... 74.9 mpg (Imp)