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Discussion Starter · #1 ·
Yea guys i tune my truck back to stock to tune it with 89 tune but my cortex superchips doesn't have it. It only has 87,91,and 93 tune. But i had put 89 octane gas on my truck to tune it with the 89 tune, but i didn't have a option so tune it back to 87 tune, will i come across problems if i keep putting 89 octane on the 87 tune? or should i waste the 89 gas and stick with 87 octane gas? thanks everybody, for the help.
 

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You should have no problems running higher octane gas with lower octane tune. It's when you go the other way that problems may occur.
 

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Yeah what he said.
 

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Discussion Starter · #4 ·
thanks guys then i guess ill keep it like this for a while.
 

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You could just give me that programmer and ill take care of it for you :redblob"

We have 87 89 and 92 octane up here so ill be running the 91 octane on 92 gas when i finally get my programmer.
 

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Discussion Starter · #6 ·
You could just give me that programmer and ill take care of it for you :redblob"

We have 87 89 and 92 octane up here so ill be running the 91 octane on 92 gas when i finally get my programmer.
ha ha well im gonna actually start running 91 to use the 91 tune instead.
 

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Yea guys i tune my truck back to stock to tune it with 89 tune but my cortex superchips doesn't have it. It only has 87,91,and 93 tune. But i had put 89 octane gas on my truck to tune it with the 89 tune, but i didn't have a option so tune it back to 87 tune, will i come across problems if i keep putting 89 octane on the 87 tune? or should i waste the 89 gas and stick with 87 octane gas? thanks everybody, for the help.
Damn that's hard to read. :huh:
 

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Discussion Starter · #8 ·
Damn that's hard to read. :huh:
Yup sorry for all those run on sentences lol. Then again im not in English class lol
 
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