Actually I don't live anywhere really warm, but this is the oil that Tom uses at focus fanatics, he is an expert when it comes to turboing the zetec. It will help protect the turbo bearings more when really hot.

ATX MTX swap, rear drum disc swap, drilled rotors, ported intake, optim throttle body, CAI, 7.5L MAF, adj. fuel regulator, longtube headers, underdrive pulley, no EGR, low inpedence bigger injectors, 2002 Focus Swap