How to Fix a Gas Octane Mixup

Easy fix for a gas pump mix up

For some types of cars, gas octane really does matter, and putting low octane into a car that requires high octane can cause problems. Here's how to fix them.

By the DIY experts of The Family Handyman Magazine

Boosting octane level

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Required Materials for this Project

Avoid last-minute shopping trips by having all your materials ready ahead of time. Here's a list.

  • Octane booster