You can still drive the car with that tank of 87 octane but DO NOT get into boost whatever you do!If you have a BTM, turn the knob all the way to 3 also..Dont fool with the octane boosters from the parts store.They dont add enough Octane to even worry with.Just drive it easy ( like a Granny) for that tank of fuel and Fill up with 93 when its gone..
Most octane boosters raise octane 1-10 points (how vague can you be) but read the fine print, 1-10 points is .1-1 octane. So, add it to a tank of 93 and you get between 93.1 and 94. Take a guess.
You're better off finding a Union 76 around that sells 100 octane race gas from the pump and adding some of that to get the octane that you are looking for. You can call their 800 number to find the closest one to you that sells it. I'm lucky, I have one that is only about a mile from my work.
there's a 76 station in La Habra that sell the 100 octane. But it's heck of expensive. Like $5-6 a gallon I think. I had to do that one time when I accidentally filled the stang with 87 (I put 87 in my other cars). Emptied out half and filled with 100. Damn expensive lesson, lol.
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