Engine oil Castrol or OEM Honda

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

I\u2019ve always preferred Castrol gold.

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 really good considering cost and quality.

I replaced the plugs, oil/filter and air filter with oem parts when I got it. I\u2019ve been changing the oil at 5k intervals with the recommended Castrol 0w-20.

I run Castrol (bought at Walmart), like my father and his father did before me...

I use it in my non deleted CJAA (dumb) but I haven't had any issues (yet) and it doesn't burn oil.

2014 VW Passat 1.8TSI engine. 249k miles. Did the recommended oil change at every 10k until 125, then every 5 k. Transmission fluid change every 80k, looking back, will switch to 60k, just to be safe.

I ran 10W-50 and 10W-60 for a few years in an old and beaten up Honda in the hope of reduce oil consumption to avoid having to open the engine. Long story short: it's not harmful, it's an expensive gimmick, the only real-life effect is fuel consumption will slightly worsen and that Honda had occasional issues with VTEC (a well known issue in those engines when running high viscosity oils).

I tried Castrol and was not a fan, found it burned faster than any oil I used.