MerrickCampbell
Registered user
My 1200GSA has Castrol Power1 Racing 4T 10W-50 in it. Bloody expensive and it is using a bit! It is fully synthetic but what can I use for toppingup? must it be the same? or at least must it also be fully synthetic? moving on when it is due its next change what is a alternative to this stuff. I think i paid about £15 or £16 for a litre at a main dealer a few weeks back.... Help???

)