Whats your mileage?

[Roadster19]

i didn't see anywhere where it said i have to use it, it just said recommended, in some places near where i live gas would be like 1.30 for regular and like 1.70 for premium

[extrashaky]

Originally Posted by CruiseZen

Unless you post whether you have AT or MT its difficult to compare mileages.

I didn't consider that. With my MT:

29 mpg if I do a lot of highway driving at 85 mph
36.5 mpg if I keep the cruise control set on 67
33 mpg average over several months with mostly highway miles interspersed with some spirited driving and city driving

[extrashaky]

Originally Posted by Roadster19

i didn't see anywhere where it said i have to use it, it just said recommended, in some places near where i live gas would be like 1.30 for regular and like 1.70 for premium

The fuel section in the manual for the BRZ says this:

The engine is designed to operate at maximum performance using unleaded gasoline with an octane rating of 93 AKI (98 RON) or higher. If 93 AKI (98 RON) fuel is not readily available in your area, unleaded gasoline with an octane rating of 91 AKI (95 RON) may be used with no detriment to engine durability or driveability. However, you may notice a slight decrease in maximum engine performance and you may hear some knocking (pinking) of an engine while using 91 AKI (95 RON) fuel. Use of 91 AKI (95 RON) fuel will not affect your warranty coverage.

Then, a little later in the manual it says this:

Using a gasoline with a lower octane rating can cause persistent and heavy knocking, which can damage the engine.

That pretty much means the higher octane is required. This engine has a high compression engine. High compression engines require higher octane to avoid knock. Give your car its proper breakfast.

[Pete156]

Originally Posted by Roadster19

i didn't see anywhere where it said i have to use it, it just said recommended, in some places near where i live gas would be like 1.30 for regular and like 1.70 for premium

Don't use regular. Your engine does not like it and you are just asking for problems down the road.

[Tcoat]

Ya the dealer filled mine with regular before I picked it up. They argued that it says "recommended". I had read through the posts on here before buying so know that it should say REQUIRED and was not impressed. Ran far better after I burnt through their "free" tank and put the proper stuff in it. If you use an online search for gas prices (in Ontario it is www.ontariogasprices.com ) you can usually find someplace nearby that the premium cost isn't tooooo much higher then regular. Best to check out some of the fuel related threads on here to find what you should avoid though. As my mileage is so much better then my last car I figure it is pretty much a wash on cost (in the long run).