Post
by El_Freddo » Sat Jun 14, 2025 7:51 pm
If the recommended oil change distance is 12,500km or 15,000km ditch it for 10,000km.
10,000km seems to be a bit of a standard across many vehicles. And it’s easier to remember/work out the next oil change I’m number.
Subaru engines aren’t any harder on oils than other petrol engines - at least not that I’ve heard of anyway.
We have a Gen3 RX Liberty with the EJ251 (2.5L) in the family. We feed it any 15w-40 from memory. I used to get penrite all the time but recently couldn’t get the semi synthetic I wanted so went with another oil that was on special. Can’t remember the name now, it’s an Aussie company. Since using this oil the engine doesn’t consume as much oil as it did previously.
This is also the engine from factory, 500,000+km on it, I’ve swapped the head gaskets for MLS units from the STi 2.5L model - this gets rid of the leaking head gasket issue. Not had a problem since. Still pulls like a freight train.
Cheers
Bennie