recommended

  1. M

    Recommended oil for tuned engines?

    Hey guys, I'm due for another oil change and wanted to see if there are any recommendations to use a different weight oil with a tuned engine. I'm running a GT2 AWD with a JB4 and .022 gapped Denso plugs. I usually run Map 1, but occasionally run Map 2. At some point in the near future, I'll...
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