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5w30 or 10w30

Discussion in 'HYBRID -> ED-EF / DA' started by vpower, Apr 26, 2011.

  1. vpower

    vpower New Member

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    I was wondering which oil I should use on my b18c block...thanx
     
  2. double0Si

    double0Si ლ(ಠ益ಠლ) VIP

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    I use 10w30 in normal weather conditions. In the winter, I'll use 5w30 for better start up protection. 5w may free up a few hp but (depending on brand) it can also wear out faster.
     
  3. vpower

    vpower New Member

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    Alright kool thanks...
     
  4. josh_crewdson@y

    josh_crewdson@y New Member

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    10w30 for summer.

    and

    5w30 for winter.
     
  5. Magana559

    Magana559 The Warden

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    You should use 10w40 in the summer if the temps go above 95. Oil thins with heat and 30 weight oil becomes just about 20 weight in high heat. We get real hot here......about 114 to 116
     
  6. vpower

    vpower New Member

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    U don't think 10w40 is too thick for a morning startup though???I head off to work at 6a.m. and Leavvin work at 5p.m. most of my driving is particularly in cooler temps...
     
  7. B16

    B16 Super Moderator VIP

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    I run 10w40 in my B18C race motor.
     
  8. double0Si

    double0Si ლ(ಠ益ಠლ) VIP

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    It'd be roughly the same at startup.
     
  9. Magana559

    Magana559 The Warden

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    In the summer its 70 by 6am. I run 10w40 all the time except during freeze time.

    Shit I remember a buddy running 20w50 in his chain smoker single cam. When we pulled it apart bearings and oil pump were still in spec.
     
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