you are much better off buying the OEM Subaru oil and filters (at least until the warranty is up) This will give you more legs to stand on if there is ever a mechanical problem with the engine during the warranty period. Also, keep your receipts.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.
thanks,
plex
Using 0W40 instead of 0W20 oil on the 2013 2.5 OB
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.
thanks,
plex
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.
thanks,
plex
1 - 3 of 26 Posts
I think there is more to it than just the pump having to work harder. It can only work so hard before the relief valve opens up. The oil galleries and bearing clearances may be smaller in this engine due to the lower viscosity oil. Some areas may not get sufficient quantities of oil. Why take a chance? TUsing 0-40W will do no harm what so ever to your engine. It will just cause the engine oil pump to pump harder than it needs to which is a mechanical loss meaning you are making your engine run slightly harder than it needs to resulting in a minor loss in mpg.
That is why most manufacturers have spec'ed this oil it flows better.
Even my BMW E93 twin turbo engine spec'ed 5-30W which certainly runs hotter off the turbo discharge than the Subaru normally aspirated engines do.
What oil does the Forester turbo run, anybody know? I am guessing a little thicker than the 20 weight...
Wrong - really? Of course Subaru does not make their own oils or filters. Why would you go to the dealer and buy the wrong viscosity and the wrong filter for the vehicle?Wrong, use the correct oil (ie - 0w-20) and filter spec set in the owners manual and you're ok. Subaru makes neither oil or filters, they only stamp thier oils and filters with thier name. Yes keep receiipts.
I am an AMSOIL dealer and still use the Subie branded oil and filter while the car is under warranty so there is "absolutely" no chance they will try to deny a warranty claim based on oil. It actually is not that expensive compared to the Synthetics at the auto parts store.
1 - 3 of 26 Posts
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