Techron, Redline's FI cleaner and others I can't recall contain PEA (polyether amine). PEA is somewhat special as other detergent additives can cause a buildup of the detergent itself over time.
Also there's some evidence that the big slug of Techron (dumping in a whole bottle) is not as effective as using a little all the time or using Chevron or Texaco gasoline. I haven't been able to find out what does of PEA is in the gasolines. Techron additive is 30% - 60% by weight according to an MSDS I found.
If I can't find or don't want to pay the extra for Chevron, I'll drop about a fourth a bottle of Techron along with a fuel up.
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E82 / BMWP Springs / Koni Yellows / M front control arms / Adjustable front endlinks / M rear guide rods / Whiteline Poly RSFB
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