[fatlazyless]

PFE is the ingredient in fuel cleaners that does it best.

TechRon concentrate plus w/ PFE is most recommended fuel cleaner, about $8

Gum Out all-in-one, and Gum Out regain hi-mileage w/ PFE, about $4-each

Both Gum Outs are lower price than TechRon but still good to use, maybe not as effective with less PFE

All the low price el cheapo fuel cleaners are nowhere near as good as the above with PFE. The cheapies have different ingredients with less cleaning ability.