G'day guys... New member from Australia here... I've got a freshly built Nissan Skyline GTR, pushing about 600hp, plus upto 75-100hp Nitrous shot. It is 90% road driven car, with visits to the racetrack as often as I can get there (perhaps once every 2 months). The engine is being shoehorned back into the car tomorrow, and will be run in using Valvoline Mineral Oil on the dyno for 5 hours, and then 1000 road kms with continuously varying loads and speeds, then back onto the dyno for final power runs and tuning. I'll be running Redline Lightweight Shockproof in the gearbox, and Heavyweight in the front and rear diffs. I'm currently tossing up between Motul 300V and Redline engine oils after the run-in period and wanted to ask your opinions on what I should be using. I was concerned by reading a few threads claiming that Motul 300V wasn't suitable for road cars? I'll be changing engine oil at 5000km (3100mi) intervals or less. Cheers, Andrew.