I run 0w30 in my F82 M4 as that's what BMW and Shell recommend.
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.
shell long ride sulit for honda click
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.
I am using 15W40 Shell Oil for the last 8 years. No issues. 160k Kms on the Odometer
Castrol is really good considering cost and quality.
Castrol is fine
I tried Castrol and was not a fan, found it burned faster than any oil I used.
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