I’m curious with our cars as to what the performance gains are (in HP or 1/4 mile time improvement) with stepping up from pump 91 octane to VP 103.

Years back when I was more into strip racing (on other vehicles) I would toss in a few gallons of this at the track (mixed with 91/93 pump) and there were some decent improvements.

Local dealers are selling 5 gallons at about $140 (CDN) so I’m not sure if it’s worth it for a tenth or two.

Feedback appreciated.