So what's the "go-to" PEA based fuel additive? Indirect and direct injection engines...

[Jim K]

"What is the best PEA based additives ?"
I don`t PEA in my car.

 

[Davejam]

Take this with a grain of salt but I've alwyas had noticeable results with Royal Purple's MAX-ATOMIZER in all my vehicles.
Buddy dumps a bottle in and tops up with 94 octane before the drag strip and notices better performance during and after that tank of fuel.

Max-Atomizer has PEA, but less it would seem than Gumout/Techron/SI1
<15% says MSDS that I could locate.

 

[dubber09]

Just re-checked SDS for Can and US Gumout Regane line and it looks like US versions of HM and Complete both have 10-30% PEA while Can version of Regane Complete has no PEA while HM does - same 10-30%.