My neighbor has a older 80's GMC Pickup and it sounds and runs awful cold or during winter. His income is limited right now so I have taken to the BITOG way and tried to help. I've let him use the last couple ounces of Redline Si-1 occasionally to try to clean his fuel system up. Would non ethanol fuel be something that could help? I cant help but to think it would. I'm contemplating giving him this can of CRC GDi throttle cleaner to help. Any insight,guesswork is great.