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4GTuner

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  1. T

    Mineral vs synthetic oil for running in motor

    Mono 30wt might not be suitable during Winter, i would go for a cheap 5w30 mineral and after run-in would got for a ester base synthetic. Probably a 5w40 weight.
  2. T

    Oils and Brake Fluid - EVO II

    Do you guys have any issue with boiling power steering fluid? I solve mine with RL D4 ATF for power steering fluid.
  3. T

    spark plugs

    NGK Iridium BKR7EIX which is colder would work just fine with 12psi boost, any higher and you will need a number "8" heat range.
  4. T

    What oils do you use on your car?

    engine oil : Redline 10w40(very high quality ester base engine oil) manual gearbox oil : Royal Purple 75w90 centre diff: RL lightweight shockproof rear diff: RL 75w90 radiator fluid : Any longlife coolant will work. brake/clutch fluid: any Dot 4 or Dot 5.1 fluid would work.
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