I received my tuner today and plan to install it this evening. Knowing that I would be installing this tuner a few weeks ago, I have ran through two tanks of 91 octane gas. As I have read through these posts I notice some people refer to using 93 octane. Is there a benefit to running 93 instead of 91 octane with the "max preformance"? If so where are you guys filling up? All I have ever seen is 87,89, & 91 and I have been driving for years. Is there a NASCAR gas station that I don't know about?

2000 4x4 v8 5.4L with 6" suspension and 35" tires.

Tony

 

I beleive 91 octane is the highest you'll find on the west coast. Here on the east coast we have 93 and some stations carry 94 octane. Just buy name brand gas, no off brand cheap stuff and you'll be fine.

 

Hi Tony,

Orlando is exactly right - you don't see 93 or 94 octane premiums out where you are because a couple of years ago, California & many states west of about Texas lowered the octane rating of premium fuels to just 91 octane - I can't tell you the why's, etc., but that's the deal. Yes, if you had access to 93 octane you can get a bit more power, but that's not an option for you there in California, and the difference isn't "large" by any means - a few HP.

The bottom line is, your location is the reason you see only 91 octane for premium, and as long as it's a good quality fuel, 91 octane is just fine for the premium gas Superchips programs.

Enjoy your new Micro Tuner!

 

Thanks for the info., I wasn't aware of the Octane difference across the contry. It doesn't suprise me California is differnt from most other states.

I did install the tuner Friday night, took 15 minutes, and instantly saw a considerable difference in HP. It is as if I gained more HP than I had with stock tires with the 35's I have now.


Thanks - Troyer Performance

 

You're very welcome, & glad to hear you're enjoying the Micro Tuner!

 

I was between Youngstown OH and Pittsburg PA a year ago and saw 85 or 86 and the highest was 90, wierd i thought.

 

Hi messman24,

Thanks for your post!

Usually those really low octane numbers like that are found only at high altitudes, and in those areas this generally affects *all* fuels in that area.

I've never seen that anywhere that wasn't high altitude, so that is not at all "common" - octanes that low are very rare overall, and have traditionally been limited only to high altitude areas. As altitude increases, the octane needs to come down a bit due to lower oxygen content in the atmosphere, so it can burn the mixture properly (the higher the octane, the longer it takes to light off the mixture).