AO Car Of The Year Winner 2015
Join Date: Dec 2003
Re: can you mix oil brands? -when topping up?
All present oils can be mixed; nothing harmful will happen (no sludge for example). You can even mix mineral or semi synthetic with synthetic (most of claimed full-synthetic oils have large mineral content as well).
The point is, that mixed oil , even the same grade and type may (but may not) loose balance of its additives and might not be up to the original spec. If your car is relatively close to oil change there is no problem, but I wouldn’t mix two oils if I expect to drive it for thousands of miles more. (Although the two might work perfectly together, but without laboratory test you can never know)
147GTA,Grigio Metallico,Imola leather, 3.75l conversion,F360 TB,ported heads,Balduzzi cams,GTV manifolds,EQ pipes,Supersprint silenced cat back,18" GT multispokes,KW V3,Galfer 6pot 355mm,Brembo sport rear, Blaupunk NewYork 800 + Focal
147 1.6TS, Nerro,Beige Interior,Galfer Extreme Brake kit,2,0TS intake manifold,Custom ex. manifold,200CPI cat,Supersprint silenced center + OO backbox,GTA spoiler,GTA side skirts,GTA headlights,Blaupunkt LA MP74 + Focal + MacAudio + Dynamat + HERZ subwoofer