Not only is it fine, it’s widely considered the best option for the WRX. I have had multiple cars and always did my own oil changes. On my first oil change on the WRX I used my (at that time) tried and true Mobil 1 high performance oil filter and the seal blew and made a mess. Luckily I caught it before any damage was done. Since then I’ve exclusively used Subaru OEM oil filters and had zero issues.
I always go OEM for filters and fluids, brakes. other parts are OK. Cabin air filter I made a mistake and bought on Amazon, it had a weird smell to the filter after letting it run, OEM come packaged in sealed plastic so no manufacturer offgassing. Oil filters I always go OEM. Mainly becahse the last thing you want is a piece of dirt inside a boxed oil filter (no plastic) such as Fram or Purolator. Honda oil filters come wrapped in plastic, inside a box. If you go oem for the oil filter, never stick your finger in the hole to open it, always twist the plastic away, such as stick a screw driver/pin through the top of the filter and peel downwards. At my dealer it's happened where a tech would open it by shoving their finger in the bottom and a tiny tiny piece of plastic would clog one of the oil ports inside the engine block starving the head of oil entirly
I use the black OEM filter and Pennzoil Ultra Platinum. The platinum and the Ultra Plat is the same formula now I’m pretty sure. I’d stick to the OEM filter too. It’s what my tuner recommends and I wouldn’t go against what he says unless it’s literally written in the stars
Mechanic said he'd replace the oil filter, maybe sometimes that problem is caused by non Honda oil filters. I said ok.
Lo and behold, the CC drifting problem is gone, but fuel efficiency is down to about 24 highway. No limp mode or other problems.
Yeah P0740 is the writing on the wall that the tc is on the way out. However, I'd try a couple things before throwing in the towel. Firstly, changing all the fluid out and replacing the filter is a start.
I use Castrol GTX and OEM Filter (15400-PLM-A02) in my 96 Civic (leaks oil..)
In my Integra I use Mobil 1 and currently OEM Filter (15400-PLM-A02). I've looked into the HAMP filters before, but I can't really justify the price. I've used OEM on my cars for thousands of miles with no problems.
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