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5w30 oil

  1. MKV GTI
    i was wondering if i could run 5w30 during the winter on a mkv gti? i have some leaking oil issues(that i cant figure out..posiibly a blown turbo, bad valve cover,or leaking head gasket) that i think a different weight might help it out. Please let me know what you guys think. and ill be posting...
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