STP Octane Booster – Restore Power & Stop Engine Knock
This post contains affiliate links. Purchases made through them may earn a commission at no extra cost to you. 👉 Check the current price on Amazon Sluggish throttle, pinging under load, or the dreaded “knock” after you fill up with bargain gas all point to one culprit: low octane and carbon build-up. Reaching for pricey…