fuel type

Asked by Feb 01, 2010 at 07:35 PM about the 2010 Subaru Impreza 2.5i

Question type: General

I can't find this on the website. Does the 2.5i take regular or premium fuel?

3 Answers

95

regular. only turbo models (wrx, sti, forester xt, etc.) need higher octanes.

6 of 6 people found this helpful.
65

You dont strictly need a turbo to warrant running premium petrol, I run my 99 impreza on premium and its a 1.5 non turbo. With premium, you see cleaner combustion and increased power (Bugger all mind you) and with regular you get.. well... regular haha. Premium will be more expensive but youll see a healthier and cleaner combustion per stroke

3 of 3 people found this helpful.
225

I was told by my Subaru tech that running premium in our N/A 2.5l engines can actually lead to greater carbon build up on our valve train. In short, he said it's not necessary at all, and it doesn't really improve your performance.

7 of 7 people found this helpful.

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