ExxonMobil Synergy Diesel Efficient
Has anyone run ExxonMobil next generation diesel fuel? They claim it improves fuel economy, reduces emissions and runs cleaner, and keeps injectors clean. I've run a couple of tanks of this fuel n...
Forum Discussion
SidecarFlip wrote:
I uses nano-borate additive in all my diesels. Is it mystery juice? Just had the valve covers off my truck and the overhead is so clean at 100K, you can see the paint marks on the valve springs.
Only snake oil I use.
What's it supposed to do for the engine?
