My 1.6 zetek is suppost to have 5w/30 synthetic according to the local ford dealer, but its currently got 2.5 liters castrol? gtx 10w40 + 0.5liter 15w/40.
So I bought a 4.5 liter bottle of 5w/30 as ive got a slight oil leak somewhere (which i need to fix oil is expensive!) but not sure if they can be mixed.
Oil leak seems to be inside cylinder3 somewhere no idea how to test which bit..
Is there any easy way to lower the amount of oil its burning?