× Auto Repair Pros Member Benefits TechHelp Knowledge Base Forums Resources My iATN Marketplace Chat Pricing About Us Join Industry Sponsors Video Members Only Repair Shops Auto Pro Careers Auto Pro Reviews
Join Now
International Automotive Technicians Network
Re: 2017 GMC 2500 HD spark plug wear ?
Posted to Technical Discussion Forum on 2/1/2022

[...trimmed text...]

Hi,

Discovered this today

Fuel containing metals such as methylcyclopentadienyl manganese tricarbonyl (MMT), which can damage the emissions control system and spark plugs. (page ... Login to read more.