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  1. K

    Mobil 1 sold at Walmart vs Summit Racing

    I was at Summit Racing's retail store last night and I figured while I was there, I should pick up some oil. Why go to Walmart when you can buy from Summit (and they have the price match guarantee), right? So I went to the counter and asked the guy to price match Walmart's Mobil 1 price. The...
  2. K

    Should synthetic be changed after one year regardless of mileage?

    Hi all, I'm sure this has been asked before but I'm on my mobile and the search didn't find any relevant results. I have two cars that are weekend cruise / occasional autocross or drag race use and I use full synthetic in both. I put maybe 3,000 miles on the cars each year. Would the...