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synthetic

  1. General Maintenance and Detailing Forum
    Ok, so I bought a 2007 Caliber SXT, and it has 81,500 miles on it. The previous owner doesn't know if he is running synthetic or conventional, but he said he changed the oil every 5,000 miles. So since I'm not sure what it's running, I'd like to switch to synthetic either way. Is it too late to...
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