From Steve Lowery of Danville, Alabama on 3/8/2012.
My 99 M3 was smoking when under hard acceleration and my fuel mileage had dropped to 20 miles per gallon. After one tank of fuel mixed with the Red Line Fuel treatment, the smoking is almost completely gone and fuel mileage is up to 23 miles per gallon. I plan to use the Red Line Fuel treatment every 10-15K miles in the future. Great product!!
this stuff is great!
From Mike of Eugene, Oregon on 1/3/2006.
I had my Subaru Outback for its 30,000 mi. service. (The car has 150,000 miles and has been well-maintained). They told me I should have the fuel injector cleaning. I declined and bought a coupld of bottles of Red Line fuel system cleaner instead. One bottle did the trick! It's like having a new engine. I believe their claim that 1 bottle brings the system back close to 100%. I plan to use a bottle every oil change (3500 mi. or so) from now on.
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