Octane Booster Fuel Additive
Tolulene/Xylene are great if the ambient temps are above 65* degrees outside....plus you get a discount if you buy a 5 gallon jug over the 1 gallon can.
I prefer tolulene and have mixed it as described above at 2:1 gasoline/tolulene. or 10 gallons to 5.
30 psi boosted 4 banger no likey 91 octane :snakeman:
The benefit of tolulene/xylene is Walmart is open 24/7.
Otherwise, I would recommend using VP 110 or C116 Fuel from a reputable dealer.