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gas octane

  1. Oil, Oil Filters, and Fuel Discussion
    I know, I know another gas octane post, but I just got my car tonight, so bare with me. I have the new 2020 Outback Limited XT. In Colorado the lower octane level is 85, not sure why. The manual says to use 87 octane gas. My whole life I have used 85 octane. Do I really need to use 87 octane...
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