1/ Is someone able to explain to us what the RON number is, what the benifits of different RONs are and how to find out what brand of fuel are what RON ?
2/ Should one use unleaded, LRP or the real 4-star?
3/ Also additives, are there differnt types/brands/specs ?
4/ My fuel tank has a BIG filler, must be more than 2 inches (5 cm0 in dia.
I have an early 1986 GTA turbo (air-cooled) and am interested to understand this Fuel business for best perormance and good engine wear protection/life.
Thanks in advance, Simon