I put one of these in the back of a Mini (see sig) and have been using 91 octane. With the price of gas going through the roof I realized I don't know what octane the Prelude originally required. Here in California we have a choice of 87, 89, or 91. So what does the owners manual say (I've never seen one.)


Modified by kb58 at 9:14 PM 5/9/2006

 

91, you COULD use less if you're not going to beat on it at all

 

Manual says 91, but 89 will work fine with stock compression. Unless it's the JDM H22

 

Its a pain in the *** sometime cause I got a JDM H22 gas is killing me!

 

Thanks guys.