“These are genuine fuel additives. It's important to use genuine parts on performance engines like an FA20 every 6 months to prevent clogging on fuel injectors etc. I highly recommend the 5 pack.”
“Previously owning an XV & regularly getting it serviced at Subaru they would always supply one of these bottles to use between services apparently to remove carbon buildup. Recently I purchased a friends Subaru & they hadn't been supplied this from their local mechanic. I purchased this as a just in case measure as it seems to be a recommended product from Subaru.”
