I do about 10-15k per year, but its all freeway, so I plan to extend my intervals to about 7-8k, so about twice per year.

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2016 Monsoon Gray Audi Allroad - 21k
2008 Black Mercedes E350 4Matic Sport - 131k
2014 Jeep Wranger Unlimited Sahara - 62k
2003 Gray Mercedes ML350 - 122k