Fuelling Help

[buster205 0]

Hi all

 

unsure what octane fuel i should be using, i've got a 1991 1.9 gti which as had the head and block changed for xu9ja/z items, i.e lower comp ratio but all other components are from original xu9ja engine, does the c.r. and head determine octane required or management system ?

 

cheers

 

Ste

[2-Pugs 57]

If you effectively have an XU9JAZ engine then any unleaded grade should be fine