[raptor_f22]

Don't understand your point

If I buy tyres which are less fuel efficient than I have now, I'm not going to continue getting the same mpg even with the additives in

If I buy tyres which are more fuel efficient than I have now, Im either going to plateau or marginally improve on the situation I'm in now

My new mpg datum is the setup that I have which includes my current tyres and fuel additives. My delta is anything which changes that - for better or worse. I'd obviously not want to go for worse

Something I've missed?

[abeardo83]

It was a joke dude. Most blokes save money and then think "I can spend the savings on car parts".

[raptor_f22]

Originally Posted by abeardo83

It was a joke dude. Most blokes save money and then think "I can spend the savings on car parts".

Ohhh lol my bad, I thought you were being serious!! And yeah...im sure I'd be one of those if I could afford it... I mean it's not like I spent half the day investigating hybrid turbos... I definitely don't want one of those and an extra 50bhp...