the reason i ask is b/c i can go 10k miles on my 1.8T Jetta (with larger than stock oil filter and mobil 0w-40 oil) and the 13B-REW is supposed to be changed every 3k.

Can you go longer than 3k?

 

Sure you can, but I wouldn't recommend it. The car injects oil, so you will lose a certain amount between changes. There is also usually some blowby in the oil (which is a small percentage of gas). These are a few of the reasons for more frequent oil changes on these cars.

 

ahh ok, so you go through a decent amount anyway...

anybody ever try a larger oil filter to increase the capacity of the system?

I use the Big Kahuna from NAPA (FIL1333) thing increased my oil capacity by 0.9 L lol

 

Most people will recommend using Mazda OEM oil filters, they are generally considered the best for the car.

I change my oil every 1500-1800 miles, but I'm a fanatic and it's not my daily driver so I don't mind spending the extra money and time.

 

You can use a larger filter, but it's not that much bigger. Take a look at the picture above. The filter is located under the junk in the yellow circle.

 

doesn't look like changing oil is that easy on these cars huh? damn that's in there...

hoiw much larger is it vs the OEM?

I was told to use OEM filters for my car as well, MAHN makes them, but the NAPA Gold filters still work well

 

Not enough to make a difference. The key to picking out a filter for the FD (other than OEM) is to make sure it contains the anti-drainback valve.