sgretchko Posted July 11, 2009 Share Posted July 11, 2009 Should I switch to high mileage oil? 1997 LS with 162,000 miles. I have always used regular oil changed every 5k or so. The high mileage oil sounds good, since I think it is too late to switch to synthetic. In any case, thoughts and opinions are plentiful (thankfully) on this forum. I would like to hear some on the high mileage oil issue. Thank you in advance. Quote Link to comment Share on other sites More sharing options...
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