what is the highest oct i can run
08-09-2005, 09:10 PM
#1
what is the highest oct i can run
i have a 98.5 a4 1.8t with a stage 2 TAP performance package i was wondering if i could run 100oct in my car or if it will harm it? or maby mix some of the fule with regular.
08-09-2005, 09:22 PM
#3
Re: Unless the Tap software can utilize the higher octane fuel (doubtful) running
well where i live the diff between race fuel and 93 is very minimal, CA sucks if u drive a car that uses gas
08-09-2005, 09:36 PM
#4
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If the cost between 93 and 100 is minimal get a 100 program? You won't hurt anything running 100
but you may lose a little power compared to 93. It is possible the burn rate will be too slow for the timing requested by the Tap software.
08-09-2005, 09:44 PM
#5
Re: If the cost between 93 and 100 is minimal get a 100 program? You won't hurt anything running 100
i dont know if i can even get it reburned i bought the car about amonth ago and it came with all this stuff on it so i wouldnt know how to get it reflashed.
08-09-2005, 11:55 PM
#6
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you will see a difference!!
maybe not as much the program was made for 100oct but you will definetly see a difference! i was running mid 17's all nite long (yes i kno its uber slow but the car is an auto and had the neuspeed .8bar + quattro + 89 octane (yes i know)+ 3000+ft elevation) i added 2 gallons of 100 on an empty tank(light was on) and i ran a 16.7! thats almost a second off! point being that yes running higher octane does make a difference.
vick
vick
08-10-2005, 01:23 AM
#7
Re: If the cost between 93 and 100 is minimal get a 100 program? You won't hurt anything running 100
Dont run 100 and don't get reflashed.
If you get reflashed to a 100 program ONLY, you can only use 100 gas. If you add a 100 program, then you can use 100 gas and will see an improvement.
If you get reflashed to a 100 program ONLY, you can only use 100 gas. If you add a 100 program, then you can use 100 gas and will see an improvement.
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08-10-2005, 05:32 AM
#9
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Running 89 at 3000 feet is running fuel octane below the recommended grade
for a stock ECU.. let alone chipped. The difference is you got back the timing pulled by your running fuel below the 'required' octane. Now dump in a tank of 100 and see if you get any performance increase.
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