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Using 0W40 instead of 0W20 oil on the 2013 2.5 OB

47892 Views 25 Replies 17 Participants Last post by  avenger09123
Hi friends,

Possibly a dumb question (as I for some reason cannot fully wrap my head around the oil viscosity thingy), but my 2013 2.5 Prem CVT manual recommends 0W20 synthetic oil. If I was to use Mobil 1's 0W40 oil instead, would it do any harm, either in short run and/or over time?

I currently have only a few hundred miles on my 2013 OB, but plan on doing first new car oil/filter change around 1000 mile mark.

plex :cool:
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Hi all,

Thanks for all your replies. I think the consensus is to stick with the recommended 0W20 and also, as RobMunach mentions, stick with Subaru brand 0w20 oil and filter, at least during warranty in case of any hick-ups with the engine down the road.

Reason why the 0W20 vs 0W40 conundrum came up is that my 07 Saab 93 2.0T is due for an oil change soon, and I was shopping for 0W40 for the Saab, so was thinking of just getting same oil for OB while I'm at it, but I guess its better to stick with manufacturer recommendation (0W20).

Again, thanks for all your inputs! :)

plex :)
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