Technician A says that using lower octane fuel in vehicles ...

[karateprodigy]

Technician A says that using lower octane fuel in vehicles designed for premium fuel will cause serious engine damage. Technician B says that some octane boosters will cause discoloration of the porcelain on the spark plug tip. Which technician is correct?
◦ Technician A only
◦ Technician B only
◦ Both technicians A and B
◦ Neither technician A nor B

[cdmart10]

Technician B only

[karateprodigy]

Thanks for the timely response, appreciate it

[anyusername12131]

Great answer, keep it coming