Walmart offers the Sta-Bil Storage 8-oz. Fuel Stabilizer
for $3.97. This mail-in rebate
makes it $0
. Opt for in-store pickup
to dodge the $5.99 shipping charge. That's tied with our mention from a week ago and the lowest price we could find by $7. It eliminates the need to drain fuel before storage and removes water to prevent corrosion.