I use Por-15 Fuel Preservative & Stabilizer both in my boat & my 914.
I've experienced no problems
When you pour Fuel Preservative & Stabilizer in your tank, oxygen is chemically isolated (preventing oxidation) and corrosive compounds are neutralized (stopping rust formation).
When fuel sits for days or weeks at a time it breaks down chemically. Bad fuel can cause problems in your fuel system. Our special dispenser bottle will measure exactly for you with no waste. Contains NO alcohol. Use 1oz. per 3 gallons for normal maintenance, or 1oz. per gallon to thoroughly clean your fuel system.
This product is a must for the recreational boater!
# 4 oz. treats up to 12 gallons
# Pint treats up to 48 gallons
# Quart treats up to 96 gallons
*Collector Vechicles *Lawn Equipment *RV's *ATV's *Snowmobiles *Boats
# All gas/diesel engines - 2 or 4 cycle
# Keeps fuel fresh 2 years & more
# Cleans fuel lines
# Stops corrosion