My new 2025 Subaru Forester Limited

[CT Rob]

Rob,
Love the colour on your Subie, and unlike most here, I’m old-fashioned and love the way Subaru does lettering out on the tires of its vehicles!

Thanks.I've gotten lots of compliments on the color. I love it.

 

[Nuclear_42]

Congrats on the new car. Beautiful color and interior. Currently own a 2021 Outback 2.5 with essentially same drivetrain. I highly recommend you stick with 5w-30 or 0w-30 in this engine. They absolutely destroy motor oil in as little as little as 2-3k miles. 5% + of fuel dilution is very common. 3% is doable in warm weather with no short tripping. Considering you’re driving 10k or less I’d stick to 6 month 4-5k mile oil changes. It’s sad Subaru has pushed for 0w-16. Meanwhile same engine FB25DI couple years older allowed for 5w-30. Mobil 1 ESP 0w-30 or a Valvoline R&P should serve you well.

Edited: changed to couple years older FB25DI.

 

[Rand]

Meanwhile same engine FB25DI couple years newer allowed for 5w-30.

uh since its a 2025 how is there an FB25DI a couple years newer?
Has the fb25-DI ever recommended thicker than 0w20?
even in 2019 the forester owners manual had this to say:

 

[Nuclear_42]

uh since its a 2025 how is there an FB25DI a couple years newer?

FB25DI has been around since 2019. Engines relatively the same other than the thermal cooling valve and a couple service bulletins on minor things like fuel pumps or drain plugs.

 

[Rand]

FB25DI has been around since 2019. Engines relatively the same other than the thermal cooling valve and a couple service bulletins on minor things like fuel pumps or drain plugs.

yes I'm well aware of that info.
I was trying to figure out if you had typos or what since AFAIK its never recommended anything thicker than 0w20 since 2019
and you said

Meanwhile same engine FB25DI couple years newer allowed for 5w-30.

Being that its never recommended 5w-30 and there is no newer engine than 2025...

Thought maybe a phone voice typo etc.

 

[Nuclear_42]

yes I'm well aware of that info.
I was trying to figure out if you had typos or what since AFAIK its never recommended anything thicker than 0w20 since 2019
and you said

Being that its never recommended 5w-30 and there is no newer engine than 2025...

Thought maybe a phone voice typo etc.

I was referring a couple years as to the engine itself. Here is the 2019 owners manual recommendation. First year of FB25DI.

 

[Rand]

I was referring a couple years as to the engine itself. Here is the 2019 owners manual recommendation. First year of FB25DI.

So when you said a few years newer you really meant 6 years older.. got it.

with the 1999 manual language to pick the proper thickness oil.. from back when the oil chart had multiple options.
it doesn't state or recommend 5w-30 its still the standard 0w-20

The other wording is also funny.. allows 5w-30 or 5w-40 CONVENTIONAL(is there one?) for replenishment
if 0w-20 isnt available.

I'd run whatever makes you happy. I did in the 4 FB25 powered subarus I owned or worked on.

Literally anything from 0w-20 to 20w-50 would work although you have to keep in mind climate and conditions.