[Turbo]

What weight and brand oil would the experts recommend for a turbocharged FRS? It's a stock bottom end, boosted to ~300HP. I'm running a Skunk2 racing oil cooler setup, but am mindful of increased temps given I'll be using the car on track. Mileage will be 50% track / 50% street getting to the track.

I'm in Canada, but the car will never see winter use.


I'm thinking I should run something with a bit more weight at high temps then the stock 0W-20 fill - especially to help maintain acceptable oil pressure at idle once hot.


Would a full synthetic like Amsoil or Royal Purple in 15W50 work? Or do the oil passages/clearances in the stock motor require a thinner oil?