Stevo F Posted May 30, 2018 Share Posted May 30, 2018 I have several 2nd gen Legacy's, but thinking about getting a 4th gen Outback. I saw an ad for an '05 Outback- based model but with the 3.0 H6 engine. I've been back and forth on whether I would want a 6 (I am solid Phase 1 EJ22 fan in my second gens). Per my research the pros of the EZ30 would be: Pros: More power Comparable MPG's to an EJ25 An extra gear with the 5EAT transmission Timing chain Fewer headgasket issues than the EJ25, but still happen on occasion Cons: Tighter fit/ harder to work on Premium gas (is it required or preferred?) If headgaskets do go, more expensive to replace Does anyone else have anything to add to the EJ25 vs. EZ30 argument? I don't really need the additional power, but it would be nice if the MPG's aren't lower. Having to run premium would be a minus for me given how much more than the 87 octane I normally run. Link to comment Share on other sites More sharing options...
TrashyMG Posted May 30, 2018 Share Posted May 30, 2018 Far as I know only the Turbo vehicles need Premium gas, you can just run 87 octane on the regular non-turbo EJ25 and EZ30/EZ36 H6 engines. Link to comment Share on other sites More sharing options...
nevets27 Posted May 30, 2018 Share Posted May 30, 2018 According to the manual premium is recommended for the ez30. So it's likely less happy and less powerful with 87 but it will work. Link to comment Share on other sites More sharing options...
NickCawks Posted May 31, 2018 Share Posted May 31, 2018 The 3.0 is a great motor. You don't have to run premium but your car will love you for it. Im pretty sure the gas mileage around 3 to 5 mpg less then the 4 cylinder turbos Link to comment Share on other sites More sharing options...
JustCallMeNick Posted June 1, 2018 Share Posted June 1, 2018 Fourth Gens are heavy. I recommend staying away from the NA EJ25 unless the car is pretty light. Link to comment Share on other sites More sharing options...
NickCawks Posted June 1, 2018 Share Posted June 1, 2018 I'm gonna have to strongly disagree with that. 3250 is quite light for how large the car is. Link to comment Share on other sites More sharing options...
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