The proof that quality detergents in sufficient amounts
like PEA in Chevron and others can significantly affect
the cleanliness and ability to maintain like new performance of the fuel system and related parts in the engine like intake valves, piston crowns....
The SAE did a study back in the mid 80s using Chevron PEA detergent and compared to typical PBA detergent gasoline at the time the PEA was significantly better at cleaning carbon deposits and just as importantly PEA (unlike PBA) did NOT leave its own residue behind during the cleaning process in the engine and fuel system.
like PEA in Chevron and others can significantly affect
the cleanliness and ability to maintain like new performance of the fuel system and related parts in the engine like intake valves, piston crowns....
The SAE did a study back in the mid 80s using Chevron PEA detergent and compared to typical PBA detergent gasoline at the time the PEA was significantly better at cleaning carbon deposits and just as importantly PEA (unlike PBA) did NOT leave its own residue behind during the cleaning process in the engine and fuel system.