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  1. subzerospeed

    1.6 TGDI big turbo recommendation

    Normally I run Amsoil SS 5w30 but im really concerned with the Ca ppm I’ve been seeing on UOA’s. Im particularly worried about LSPI, and although Signature Series is SN/SP, im wondering if there is a “favored” oil for small displacement GDI turbo cars. Ive recently installed some go fast bits...
  2. subzerospeed

    Sub Legacy; 7400km; Red Line 5w-30

    Blackstone labs redline 530 UOA!
  3. subzerospeed

    Group V lubricants

    What other engine oils are comparable to redline?
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