What Octain Do You Fill Up With?

[AtlastGS]

Curious if you spend the extra 2-3$$$ to use premium?

[TurboGS300]

Yep, search it's been covered. <_<

[deadmilenko]

Premium only! It only costs around $2 more every fill up and it better on the motor and you get a better MPG ratio. Do the math its a no brainer.

[Lexusfreak]

Sunoco Ultra 94 is all I use! :D B)

[apatrules]

Sunoco Ultra 94 is all I use!  :D    B)

 

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That's what I used to do, but unfortunately Sunoco 94 is disappearing in the East. Most places only selling Ultra 93.

[Lexusfreak]

Sunoco Ultra 94 is all I use!   :D    B)

 

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That's what I used to do, but unfortunately Sunoco 94 is disappearing in the East. Most places only selling Ultra 93.

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No 93 in Canada.......only 87, 89.5, 92 & Ultra 94. Since we have only 4 major gas companies that's by far the best. When I travel to the states, some friends on this site & CL suggested I give Chevron 93 with Techron a try. I was VERY impressed with it's performance & fuel economy (over 500 miles twice on two seperate tanks of gas......although it was mixed in there with the Sunoco)! :D B) ;)

[LexKid630]

If the manual says to use premium, use it.....when my wife had her 03 gs430 she put mid-grade by accident and there was even a difference...

[deadmilenko]

Conoco Premium 93 because I own a Conoco "C" Store, and no I dont get a discount on my fuel.

[new big400]

So no more threads on oils,how about no more on octanes?Use whats recommended.

[NJLexusGS]

Only 93 octane. Sometimes SUNOCO ULTRA 94