Engine oil Castrol or OEM BMW

I change the oil myself...to ensure it's done correctly and with quality oil (I use Castrol Edge). And I go by the oil minder. I do smell gas during oil changes but it's not strong and never in the cabin between oil changes as some have reported.

I maintained 0w-30 factory spec on my F85 and did 2 oil analysis and Data was great. I just changed to 5w-50 leichluf.

160k miles on mine. Most reliable car I’ve owned. Just do your regular maintenance like plugs, coils, filter, oil, other fluids and they’re rock solid!

I have a 2010 civic si, I use shell rotella T-6 5w-40 due to burning issues and one quart of Castrol 5w-30 high mileage full synthetic (I’m picky lol- but my car runs smooth and has consistent oil levels on the dipstick through the weeks after oil change)

Buy Castrol Edge engine oil for your Mazda 2.5, but do get the Mazda transmission oil.

I\u2019ve always preferred Castrol gold.

hey u/op ... if its not too late..\n\ndont drain the oil the normal way! the paint would be carried through the oil passages and possibly hardening in them.\n\nsince they poured/sprayed the paint through the opening, its all in that area.

In my 323i with the 2.5L N52 engine, I use Castrol Edge 5w40 with the appropriate LL specification. Oil consumption is 3000 km per liter, with 190,000 km on the clock.

Castrol is fine

10k miles later, went to do my usual 1k mile quart of oil, looks like chocolate milk.