Reply To: is 100 octane good or bad?

Home › Forum › Ask A Member › is 100 octane good or bad? › Reply To: is 100 octane good or bad?

June 7, 2022 at 7:24 pm #261136
Don
Participant

    US Member

    I would ignore that foolish 24:1 recommendation for CD/AD models with plain rod bearings.  Later model CD/6hp models had actual needle bearings on the big end of the rods so 24:1 is just fine for them.