[101Volts]

Somehow my F.E. went down (temperature change is part of it, no doubt) and I decided to stop the pre-ignition issues we've been having which I never mentioned before. Most fuel I've run in this car is 87 E10 and over the last few thousand miles it feels like it's been losing power uphill so I got two bottles of Amsoil P.I. (I'm not over-treating the fuel) to hopefully clean out the valves and combustion chambers and I filled up with 91 Octane E0 today at the station I said I wouldn't fill at. It's one of the only stations that sells E0 near me, this pump is specially for E0 and it didn't have an overshooting problem when I pumped unlike at the other pump. It may be a bit early to tell but I haven't noticed as much pre-ignition even after hard acceleration since the fill. It's still there but it's not as bad.

I haven't changed the spark plugs or wires for five years and the carburetor hasn't been worked on since before I got the car at the very least, it's only been 13k miles since the spark plugs were replaced but considering I've mostly run 87 E10 they may have considerable deposits.