You'll need to buy 5litres (well, 5x 1 quart bottles as they're american measurements, but 1 quart is virtually 1 litre)Im definetly going to give the redline trick a go. Sounds like a lot of people are getting good results.
How much do you need to put in?
Will be interested to here how it goes!Thanks for the advise I have ordered some £54 for 5 litres I hope it does the trick and we don't have to go down the repair route.
Will update you.
Cheers Juliab