Gas - Higher Octane

[nolig2278]

How do the Mazda OBD2 computers handle higher octane? Do they run as they always do or would they get better performance and or higher miles per gallon?
A couple more miles per gallon would be nice to save on visiting the gas stations so often and also I like the idea of the cleaning adatives that BP uses in their premium gas. If there is no improventment then I might just use STP treatment every so often.

Thanks

I have 09 6 4cyl manual
My BPT requires premium or else detonation

 

[Jas00x]

On the older cars, like my Dad's 95 miata, it performs worse with high octane gas for some reason. I never noticed a difference on my Protege when I was using the stock ecu so I always used regular. With the brand new cars- like your 6- I doubt there is really going to be a noticable performance gain. You can always try it out for a week or two. it shouldn't hurt anything.

 

[Deatschwerks]

I doubt you will have any problems running 93, but you probably wont be able to tell the difference between it and 91.

 

[MSPYOUNGERS38]

all its telling you is its resistance to detonation, so running higher octane doesnt really give performance so going from like 91 to 93 not a big differance or even from 87 to 93 but you may see a little better mpg but only by a few.

 

[R-X-R]

well, ever since i got my 03 pro i use 93 octane so i dont really know,.,.,never use regular.,..,

 

[MSPYOUNGERS38]

should be fine i wouldnt use any less and if its modified i really wouldnt but your not going to see power gain or any problems with obd2

 

[Cue]

If your engine says it requires 87, then use 87. As stated above, higher octane has higher resistance to detonation.... Your wasting your money otherwise... 2 dollars at a time!!

 

[808MP5]

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