Join Date: Oct 2015
Location: Morehead, KY "Everyone likes Morehead"
Vehicle: 2006 SLK55 AMG Red with Black int. 31k mi.
Other Toys: C32 AMG, Harley Davidson FLH-FSE, Ducati 900M, MR2 Turbo, Anschutz M54 Super Match
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I had a independent Porsche Tech tell me years ago to use Techron about every 3 months in my P-car. I use it or the Lucas injector cleaner periodically in all of my vehicles except for the Diesel. With Techron the prescribed method is to put a full bottle (small one) into 1/4 tank of fuel and drive normal for the rest of the day. Overnight the car will cool. Next day, warm up the car and then run the $#!t out of it. i.e., full throttle, hard acceleration to redline in each gear. Full autobahn experience. The product works overnight to loosen, soften and help dissolve the hard deposits and varnish from the injectors, intake valves, and other important moving parts. Depending on how junked up your engine is and the lighting conditions, you my see an white/lt grey cloud of gunk blowing out of the exhaust for a short while. Not to worry, that is normal.
When you get tired of being a hooligan, go fill the tank with top tier fuel and drive normally for the rest of the tank. If you can get in some fast interstate that is better. The Lucas product and I think the Techron also have a slight octane boost effect also which may help with elimination of the knock/ping/wheeze right away. Depending on your driving style and normal daily route, you may need it more often.