I personally do an old and filter every 6-7000 km. I do it so frequently because, 1) I do it myself, so cost is down and I make sure the job is done right. 2) the sky active engines are known for carbon buildup, so more frequent oil changes should help. 3) Longevity, I want to see 300,000 or more on the dash one day.
People like me on the other hand are going for synthetic oil and Mazda OEM filters but still need to get an oil change at 5000 miles.
An oil change with decent full synthetic is 30-40$ for 5 quarts + OEM filter for another 5-10$. It's relatively cheap to do every 6-8 months to know it always has decent oil, and no problems should arise.
I’ve been using Mobil 1 in everything I have ever had since I first got my drivers license; never had a problem with it yet.
I also religiously use K&N oil filters because they work well, and I like the “wrench off” feature they have.
I get the k&n oil filter since it lasts for 20k miles
When doing oil changes buy a K&n oil filter.
Sometimes I can make 2500 and have actually reached 3k miles without adding oil.
Cheap ones are crazy and every time I use the oil filter I get at Walmart oil changes I’m adding oil at 1500 miles.
I'd go with the OEM Mazda Oil Filters but any high quality synthetic 0w20 will work fine.
I use Rotella T6 5w40 with K&N HP oil filter on my 03 DE daily/drift car.
Those KN filters are so tiny and I have had one break in my NA Ford Falcon so I don't use them any more.
I refuse to buy K&N after one failed and burst apart on my Honda CB1100 a couple of years ago.
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