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I switched to motul 5w40 about 600 miles ago from 10w60, car is much smoother etc. Can't say I have noticed any loss in power at all though. Im supercharged so this may be affecting that but shes pulling just as strong as ever.
Do love how the car feels with the 5w40 though, so even if I was loosing a tad of power I would still keep it. Pending blackstone report that is
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4.4L LC stroker/ESS VT2-625/Volk te37 sl's/AA exhaust/DSS Carbon Fiber driveshaft/ARH Headers.. etc |