I just traded in my 2018 Mazda3 GT on a new CX30 (aero gray (new color) with light gray interior). I got a 2.5 NA hoping it gets a little better mpg than my CX5 Turbo. I will be doing a 1500 mile "feel good" oil change in the near future. The new car calls for the same Mazda filter as my old 3 used (1wpe-14-302). I initially started the 3 on Mazda filters and eventually changed to a Fram TG filter. The cost of Mazda filters kept going up more so than filters at walmart or even my local auto parts store. To add to that, Mazda has once again, changed the point of manufacturer from Japan, then Thailand, now to Taiwan (hopefully no quality change but may be too early to tell) and raising the price to now 12.95 at the dealer when I was getting them for 8.95 not long ago. I used to buy filters six at a time on line from Mazda dealers for even less, but those deals have dried up as have Mazda amazon and ebay filter deals. The new CX30 does have cylinder deactivation but thankfully no auto start stop feature. I will be doing a 5K oci on the new car. Is there any downside to just starting with a Fram TG or XG filter?