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New users Registered with a gmail address Attention All new Users 67-68 Deluxe Steering wheel recast Group buy

What kind of oil do you use in your race motors

Discussion in 'Race 400/430/455' started by gsdave, Jan 8, 2003.

Page 2 of 2
  1. Steve Cowell

    Steve Cowell Member

    Gary,

    Pressure taken from front of block.
    2002 seaon 6,400-6,500 RPM, 60psi
    1999-2001 6,250-6,400 RPM, 45psi

    Steve
     
    Steve Cowell, Jan 11, 2003
    #21
  2. LARRY70GS

    LARRY70GS a.k.a. "THE WIZARD" Staff Member

    Rick,
    Found it. Jan/Feb 2001 GS Extra, Article is"Motor Oil...Buyer Beware!" by Jack Merkel. Then in May/June GS Extra, in the Letters section, is a letter from Denny Manner entitled "Anti-Wear Supplement." It says:
    "Jack Merkel recently wrote a good article on wear concerns in our old Buick engines with todays oils. The old engines with flat lifter camshafts and non-roller rocker arms are particularly sensitive to scuffing and wear because these areas operate with very thin oil films. Zinc as an oil additive is used to enhance lubrication in critical areas like these. GM engine oil supplement is a zinc based additive designed many years ago specifically for this need. I believe in using good oil and fuel and usually don't recommend additives, but this one works. I use one pint (GM part# 1052367) with every oil change in our 1966 GS 425 V8. Remember even with an additive don't overfill the engine oil level."
    Denny Manner/ Engine Engineer- Retired
     
    LARRY70GS, Jan 11, 2003
    #22
  3. gotbuick

    gotbuick What, me worry?

    Bruce,

    I still have the green colored Kendall, they sold out huh? Bummer, who bought the company?

    Jerry
     
    gotbuick, Jan 11, 2003
    #23
  4. GBUICK

    GBUICK ALL THROTTLE

    Royal Purple #41 or #21. 7000 at 131+ with 75-80 lbs taken from rear of block.
     
    GBUICK, Jan 17, 2003
    #24
  5. ijzane

    ijzane Well-Known Member

    We use Mobil 1. Either 5-30 or 10-30. If we want to go faster, 0-30. Trap rpm 6,200 with about 60 psi oil pressure. (small block)

    Yes Mobil1 is coming out with a 0-20. It has been used for a number of years by the Formula 1 teams.

    Zinc is a great frictin fighter. Mobil 1 15W-50 has more of it than their lighter weight oils. We use this in out tow vehicles. 92 Chevy 1500 series with a 305 that has almost 250K miles with no probles so far (keep fingers crossed). I believe the reason that Zinc amounts were lowered in lighter oils was due to zinc not getting along with catylatic converters very well.
     
    ijzane, Jan 30, 2003
    #25
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