2024 crosstrek burning oil after 1k mi on oil change

[Rand]

Mayhaps you drive your 0w-20 on flat land Sunday drives south of 200 American?

I’m tearing it up in the Rocky Mountains usually north of 7,500’ elevation on trails, likea Ru crosstrek wilderness should. Then some stop and go with the Denverites down there going to the gym. Then I turn and burn and start climbing. Mayhaps the 0w-20 clan handle it ore would frequent oil changes be of some benefit?

228f is not hot for the fb25, my 2011 would hit 234f+ just going 80 with traffic in 70mph zones
my 2015 hit 238f-240f a few times towing a utility trailer with a big ramp up a hill.

my 2022 forester wilderness never went over 230f.
my 2024 outback with fa24f stays around 203-205, havent seen it over 209f yet. Which definitely makes me feel better about its 0w20 oil recommendation in a turbo gdi motor.

 

[Redhawk454]

Only time I’ve hit 237 American with 0w-20 was going up Ike’s gauntlet

 

[naav]

I fixed a Subaru engine oil consumption problem by switching away from 0w-20 to 5w-50. Zero downsides.

 

[naav]

I fixed a Subaru engine oil consumption problem by switching away from 0w-20 to 5w-50. Zero downsides.

This should read 5w-30. Typo!

 

[factorytuned2012]

What’s the update on this?

 

[Redhawk454]

What’s the update on this?

What’s the update on this?

I was running junk 0w20 in it (orielly 0w-20), switched to a different brand 0w-20 and im not noticing any consumption issues at all

 

[factorytuned2012]

I was running junk 0w20 in it (orielly 0w-20), switched to a different brand 0w-20 and im not noticing any consumption issues at all

That turned into an easy fix. Definitely got lucky there.

 

[factorytuned2012]

I was running junk 0w20 in it (orielly 0w-20), switched to a different brand 0w-20 and im not noticing any consumption issues at all

was this the SYNTEC or O'Reilly full sythetic?

 

[Redhawk454]

was this the SYNTEC or O'Reilly full sythetic?

O rielly full synthetic

 

[cheesepuffs2]

O rielly full synthetic

Which oil are you running now?

 

[factorytuned2012]

O rielly full synthetic

I wonder if the syntec would have done you any better. Regardless it’s overpriced

 

[Redhawk454]

Which oil are you running now?

Amsoil ss 0w20/30

I’ve used orielly in my Jeep and other vehicles without issue, the 0w20 was consumed though

 

[Silverado12]

FWIW my Jeep Cherokee burns a quart in about 3,000-3,500 miles with the 2.4 Multiair motor. I don't worry about that as these newer cars have low tension rings for fuel economy and it won't really get any worse. Mine has been the same since it was new.

 

[naav]

FWIW my Jeep Cherokee burns a quart in about 3,000-3,500 miles with the 2.4 Multiair motor. I don't worry about that as these newer cars have low tension rings for fuel economy and it won't really get any worse. Mine has been the same since it was new.

That's way too much. You are going to poison your cats and O2 sensors. Go up a weight and use the lowest volatility oil you can run.

 

[Nyyt]

Well, being a honda, half that dipstick is fuel dilution just kidding

Too true - my 2008 Odyssey gets nasty. Probably due for a egr valve.

 

[K24Z7&M20AFXS]

Is it a stick shift crosstrek? I've got 2 friends working for subaru that told me that manual Subarus consumed a lot more oil then the CVT ones for whatever reason. The reason totally eludes me btw...

 

[SiRDOHC]

Is it a stick shift crosstrek? I've got 2 friends working for subaru that told me that manual Subarus consumed a lot more oil then the CVT ones for whatever reason. The reason totally eludes me btw...

They will all burn oil, eventually, when using 0w20 at the long recommended intervals. As for the manuals burning more, the final drive ratio is higher on manual transmissions.

 

[GSCJR]

With a manual, we tend to shift later, raising the RPM. With CVT, the RPM are kept much lower.

 

[SiRDOHC]

With a manual, we tend to shift later, raising the RPM. With CVT, the RPM are kept much lower.

That too. but Final drive has a lot to do with it. Just churning at a higher rpm on the highway.

 

[mt23]

Is it a stick shift crosstrek? I've got 2 friends working for subaru that told me that manual Subarus consumed a lot more oil then the CVT ones for whatever reason. The reason totally eludes me btw...

As the owner of a manual transmission FB25 subaru I have spent lots of time considering this and I believe the answer has to do with what can be seen from the calculated load.

The cvt vehicles keep calculated load while accelerating or building momentum at 80-99 percent very well, and even 60-70 percent while seemingly cruising, maintaining momentum. The manual transmission requires a heavy accelerator input for the same result, especially at lower engine speeds, which most manual drivers will not do regularly as compared to the cvt. Cruising in the manual transmission results in 30-50% calculated load most repeatedly.

I watch regularly and target similar engine loads as the cvt in my manual. After 156,000 miles my fb25 still does not consume excessively. (subaru defined 1qt/4,000) My question is, how does higher calculated load effect the piston ring operation and cleanliness?

Whether coincidence or not, I have noticed long periods of higher rpm with lower load and lower rpm lower load both result in consumption on my engine.