Quote:
Originally Posted by botbs
I am still having issues with knock using BC 94 Chevron Gas on my Cosworth SC BRZ (2018 model), a reputable tuner here said the 94 gas I am using behaves like 89.
I added a can of 16 oz Boostane Premium in a full tank of 94, it doesn't help per the tuner.
I am thinking to pour another bottle of Premium and see if it works.
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My experiences are with TORCO which was long used by the racing community before BOOSTANE was around.
Torco always brought up the octane sufficiently with bad gas, the lower the octane the greater amount of TORCO.
The most I have ever used to stop knock was half a can. Normally it only takes a few ounces with under octane fuel. I can see the knock values drop as the fuel reaches the plugs until the IAM reads 1.
I still only use Torco.
Remember- the fuel lines are full of lower octane gas if the previous user didn't pump 94 and I don't wait and watch to get behind someone who uses
94 - hence the Torco.
