Mpg adjustment

[Scoot5869]

I usually fill yo bottom of the neck and quit I can stick it in farther and try that as well I can look out my back window and don’t see where the breather tube is flinging fuel about pretty sure dozer is blocker off but can check when I get home got the day. It’s been doin this forever feel like it got worse after my ecm died. But that problem was fixed. Also my oil samples have all been good no notice of fuel in them