Having seen unbiased side by side tests Forte and Millers are the only companies whos products actually do what they say on the bottle.
STP fuel system cleaner worked for my Golfs years ago, silver bottle still available from halfords - I take it you mean a one-time cleaner not a day to day additive?
I use diesel additives these days so not sure about recent petrol products... I do know Redex is pants though!
I think a bottle of cataclean is around £15, so not the cheapest option, but worked for me.
Go to an independant garage and ask them to check the gearbox oil, hope that helps you.![]()
Will have a look at what people have recommended and hopefully give it a mini service tomorrow![]()
about the whining noise that you are getting, is it when you are in first gear? does it sound kind of like the sound you get in reverse gear?

why did you buy the car if it did it when you got it?? well i had a whining on mine and it turned out to be the support bearing had failed. This was covered under warranty and resulted in the gearbox having to be removed and stripped down in order to replace the bearing. Thank god i wasnt payin for it as i am sure it would have cost me a fortune!
At least it was covered under warranty, lucky, lucky it was. (saved you loads of money)why did you buy the car if it did it when you got it?? well i had a whining on mine and it turned out to be the support bearing had failed. This was covered under warranty and resulted in the gearbox having to be removed and stripped down in order to replace the bearing. Thank god i wasnt payin for it as i am sure it would have cost me a fortune!