So, a lot of people on FB in the Ascent Groups have been asking what octane they should use. It's 87 octane (or higher), everywhere on the planet, regardless of climate, and regardless of altitude.
That means even if you live at the highest elevations in the country, you NEED at least 87 octane, or you risk damaging your engine.
Thanks to our turbos and computer and sensors, even at the top of Independence Pass (12,095 feet), our cars can easily get the same oxygen/air levels as it would at sea level. Thus, it requires the same octane fuel as at sea level. 87. Or better.
I explain why here:
That means even if you live at the highest elevations in the country, you NEED at least 87 octane, or you risk damaging your engine.
Thanks to our turbos and computer and sensors, even at the top of Independence Pass (12,095 feet), our cars can easily get the same oxygen/air levels as it would at sea level. Thus, it requires the same octane fuel as at sea level. 87. Or better.
I explain why here:
What Octane Should I Run In My Subaru Ascent/2020+ Outback XT? - Subaru Ambassador Robert
What Octane Should I Run In My Subaru Ascent or 2020+ Subaru Outback XT? OCTANE… Well, this topic has come up three times in a week. So, I figured I’d… Read more
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