Well my tip is to use a good quality petrol. I have just changed from a national polish company to Shell and the difference has been amazing. For the first time I got 500km from a tank of petrol. That was both a long journey and city driving. Completely amazing! I was averaging 11l/100km and with shell I am down to 8.6l/100km - an amazing difference.
I also only rev up to 2500-3000rpm and that is also helping the economy too!
It seems to be helping me
