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« on: December 10, 2006, 12:02:08 PM »
Sup guys, got a question for yous. I do mostly freeway driving and was consistently getting 350 miles per tank using premium. Now for the last 7 or 8 tanks I've dropped down to 300 miles per tank. I know 300 miles is still good and people would kill to get that on their non e30s but its just bugging the hell out of me, especially with the gas prices.
Now It started around the time that I cleaned my ICV and ran seafoam through the vacuum line and added the rest in my tank. I did this twice on 2 seperate tanks. At first I thought maybe the seafoam was causing the fuel in my tank to burn faster or something so I let it go for the first 4 tanks but now I'm just like WTF? Does anyone know of the seafoam damaging the 02 sensor or something? Maybe thats why I'm running rich and getting the lower gas mileage?
Any help would be greatly appreciated!