Originally Posted By: rooflessVW
I do know that. That fact doesn't take away from the meaning of a TÜV approval, or the fact that an FAA approval is much much more than what your average additive has.
Regardless of whether it is "much more than what your average additive has", FAA approval is irrelevant to a passenger car engine. That approval says nothing as to effectiveness at all. But, people like to throw it out (as they do for that bypass filter that has an STC for certain models) as if it means something. It does not. Besides on a technical level GA engines are completely different, especially the operating environment, the fuels and the oils.
TÜV approval doesn't show effectiveness either, does it? Isn't that a quality and safety mark? Couldn't I make a totally useless product that meets the quality standards and doesn't cause environmental harm and get TÜV approval?
I do know that. That fact doesn't take away from the meaning of a TÜV approval, or the fact that an FAA approval is much much more than what your average additive has.
Regardless of whether it is "much more than what your average additive has", FAA approval is irrelevant to a passenger car engine. That approval says nothing as to effectiveness at all. But, people like to throw it out (as they do for that bypass filter that has an STC for certain models) as if it means something. It does not. Besides on a technical level GA engines are completely different, especially the operating environment, the fuels and the oils.
TÜV approval doesn't show effectiveness either, does it? Isn't that a quality and safety mark? Couldn't I make a totally useless product that meets the quality standards and doesn't cause environmental harm and get TÜV approval?