Quote Originally Posted by VTECMACHINE View Post
That's right Arron, what I mean was engine responds better to 5W-30 rather than 10W-40.

You can get Royal Purple from IS Motor Racing and a whole bunch of place around Artamon. It's recommended that you use thicker oils with more KM's. But saying that, if you aren't buring any oil, stick to 5W-30, and enjoy the response from a thinner oil while you can . I honesly reakon there could be a loss of anywhere up to a second at Wakefield using 10W-40 opposed to 5W-30.
One second at Wakefield, nice joke! If you want response, start removing mass from the rotating assembly where you will feel the difference, not imagine it due to the price you paid for an oil.