Asking this for a friend:
She has a 2008 Subaru Legacy - 4 cyl non turbo, so I am assuming it's a 2.5L SOHC EJ253 H4 ?
She recently received a new engine from the dealer due to unsuccessful repair of head gasket failure of the old engine by dealer.
She wants to use synthetic oil now, on the NEW engine and wants to start ASAP, and asked me for recommendations. I told her i would post here and let her know..
--She still has the factory fill (probably dino?) on the new engine. IDK if it's a reman. or a brand new engine.
(have emailed her to ask - will update if she can find out)
EDIT : ENGINE IS BRAND NEW
--How long can / should she keep the factory fill before starting with the synthetic oil?
--AFAIK recommended oil is a 5w-30.
Apart from Subaru synthetic (does that even exist?), what other oils can she use? Any OTC synthetic?
--She wants to be careful and not stretch OCIs. Can she do 7,500 mile changes with synthetic or is 5,000 "safer"?
(she tells me that had done roughly 7000 miles OCIs with DINO oil on the old engine).
Any help/Advice will be appreciated.
She has a 2008 Subaru Legacy - 4 cyl non turbo, so I am assuming it's a 2.5L SOHC EJ253 H4 ?
She recently received a new engine from the dealer due to unsuccessful repair of head gasket failure of the old engine by dealer.
She wants to use synthetic oil now, on the NEW engine and wants to start ASAP, and asked me for recommendations. I told her i would post here and let her know..
--She still has the factory fill (probably dino?) on the new engine. IDK if it's a reman. or a brand new engine.
(have emailed her to ask - will update if she can find out)
EDIT : ENGINE IS BRAND NEW
--How long can / should she keep the factory fill before starting with the synthetic oil?
--AFAIK recommended oil is a 5w-30.
Apart from Subaru synthetic (does that even exist?), what other oils can she use? Any OTC synthetic?
--She wants to be careful and not stretch OCIs. Can she do 7,500 mile changes with synthetic or is 5,000 "safer"?
(she tells me that had done roughly 7000 miles OCIs with DINO oil on the old engine).
Any help/Advice will be appreciated.
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