So I've had the Walbro 255 pump now for a while. Had roughly 20K with 91 Octane and about 20K on E85. I bought the filter replacement kit, was thinking about installing it when I did the E85 Conversion, but never got around to it.

Would you guys suggest putting a new filter on the Walbro pump or would the e85 have cleaned it by itself?

Thanks,

- Steve

 

I don't see why. It won't hurt your car to have a nice new filter.