What is the best fluid for a freshly rebuilt 6L90 by Circle "D" level four (1100RWHP capable) Dexron, Amsoil or?
Fluid
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I will make one calibration change for an additional $100 per change. For example, changing a shift point for a given gear is $100 vs changing a shift point and a pressure setting would be $200. That value can be used towards the full custom tuning price.
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