U7194 and preferable octane level

Licit · Post by **Licit** » Mon Jun 29, 2009 8:58 pm

Wondering if the performance tune is written for 91 octane or 93 octane(assuming 91octane)? The predator for my 300c had the choice of 91CAI tune and 93CAI tune, that's why I am wondering.

Post by **06MonteSS** » Mon Jun 29, 2009 9:07 pm

what vehicle is this for??

if it's a truck, then the diablo/performance tune is made for 91 octane...

if it's a vette, then the diablo tune is made for 93 octane gas, and there will also be a separate 91 octane tune for it...

MikeyB. · Post by **MikeyB.** » Tue Jun 30, 2009 5:35 pm

So the performancer tune for 93 isnt worth a damn compared to the 91 for 07+ silverados?

CANUCKPREDATOR · Post by **CANUCKPREDATOR** » Tue Jun 30, 2009 6:02 pm

There isn't a 93 tune for trucks. Diablo tune in trucks is made for 91. Diablo tune in cars is for 93.

MikeyB. · Post by **MikeyB.** » Tue Jun 30, 2009 6:19 pm

Ok kool thanks canuck!!!

MikeyB. · Post by **MikeyB.** » Tue Jun 30, 2009 6:22 pm

Can we still use 93 until i can find who has 91 around here?

Dirkdiggler90504 · Post by **Dirkdiggler90504** » Tue Jun 30, 2009 6:24 pm

i installed the diablo performance tune on my Tahoe and it detonated like crazy. i was using 91 octane. i had to take out 12% spark advance on the 4k-7k. Is this normal or is our gas here in California just that weak?

Post by **06MonteSS** » Tue Jun 30, 2009 6:51 pm

MikeyB. wrote:Can we still use 93 until i can find who has 91 around here?

you can use 93 octane gas with the 91 tune... won't hurt anything at all...

if you want even more power, and you use 93 octane gas all the time, you can consider getting a custom tune made for yourself to take advantage of the 93 octane gas...

Post by **06MonteSS** » Tue Jun 30, 2009 6:53 pm

Dirkdiggler90504 wrote:i installed the diablo performance tune on my Tahoe and it detonated like crazy. i was using 91 octane. i had to take out 12% spark advance on the 4k-7k. Is this normal or is our gas here in California just that weak?

yeah, depends on the gas you were using, what brand, a bad batch of gas, etc etc...

Licit · Post by **Licit** » Wed Jul 01, 2009 10:51 pm

06MonteSS wrote:what vehicle is this for??

if it's a truck, then the diablo/performance tune is made for 91 octane...

if it's a vette, then the diablo tune is made for 93 octane gas, and there will also be a separate 91 octane tune for it...

It's for the vette but it only has one choice of tune to install, I simply chose "performance tune" and then "install tune" and it wrote to the car. I never had the option of a 93 or separate 91 tune. I just had it unlocked on Monday by diablosport and then installed the one choice of tune that day.

CANUCKPREDATOR · Post by **CANUCKPREDATOR** » Thu Jul 02, 2009 1:43 am

Vettes should only run 93 octane anyway, high performance motor needs high test fuel.

Post by **06MonteSS** » Thu Jul 02, 2009 8:38 am

yep - what Canuck said... ^ ^ ^ ^

Licit · Post by **Licit** » Wed Jul 15, 2009 1:53 pm

CANUCKPREDATOR wrote:Vettes should only run 93 octane anyway, high performance motor needs high test fuel.

You may want to tell that to the millions that only have 91 octane as the highest choice. I'm lucky we have 93 and 94 octane around here.

U7194 and preferable octane level

U7194 and preferable octane level

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