HI hope someome can help I changed my gearbox oil the other day in my Glanza v, with some new COMMA SX75w90 Part Synthetic Based gear oil, And now does not seem to be a quick as it was befor. The turbo does not kickin in as good in 3rd on high boost as it did any more. could it be the gear oil or is it a coisidence and its being caused by something else? Thanks Pomps