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synthetic oil

  1. Repair Questions
    Posted this in the Preventative Maintenance section but did not get a response so i though i would post here. When we first bought our 2002 Nissan Xterra in 2012, the previous owner told us to always use Castrol on the vehicle. Ever since, I have been using GTX High Mileage 10w40. Its not a...
  2. Scheduled or Preventive Maintenance
    When we first bought our 2002 Nissan Xterra in 2012, the previous owner told us to always use Castrol on the vehicle. Ever since, I have been using GTX High Mileage 10w40. Its not a full synthetic, but its a semi synthetic blend. Now i've been wanting to try out Mobil 1 High Mileage and that was...
  3. Scheduled or Preventive Maintenance
    I've heard lots of people switching all their fluids to synthetic and I'm thinking of doing it myself but i was cautioned against doing it if it's always had regular oil. I have 150 000 kms and I guess synthetic can cause oil leaks where regular oil has gummed and clogged on engines with higher...
  4. Scheduled or Preventive Maintenance
    i have always use dino oil but im moving from sunny southern cali to Connecticut and with the harsher weather i want my 07 xterra to run with no issues from the weather. i have heard really good things from synthetic, but i have some questions oil and oil filter combo? change oil 6k-7k? also...
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