At a new owners' celebration, my local Toyota dealer gave everyone a bottle of ZMAX Micro-lubricant as a gift. Has anyone used this with their Prius c? Do I really use it in the oil since we use synthetic oil, or should I confine its use to the fuel tank? The guy at the celebration said with a Prius I should only use it in the gas and oil (the product says to use it in a couple of other places as well). Also, am I better of saving it until I have more than 4,000 miles on my vehicle?
It's what the dealerships use to lube you up with right before they rape you on unnecessary services.