
11-26-2009, 02:21 AM
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CC Member
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Join Date: May 2008
Location: San Jose CA,
CA
Cobra Make, Engine: SPF_R_/BRG/FRBoss302/327CI/FordEFI/Under_Car_Exh/
Posts: 2,523
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Remember ZDDP ratio is also dependent on the weight of oil used , and you can get ZDDP as an additive too. (in a little shampoo bottle)
The ROUSH oils and they ( as well as Mobil1) vary the ZDDP content by weight.
5w20 -600PPM -- 10W40 -- 1300PPM, 40W break-in oil like 1800ppm.
Have not used the Joe Gibbs stuff myself.
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Steve SPF 2734 MK3 / Brock Coupe #54- panavia.com
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