Originally Posted by flyboy1100
i've given up on any further testing until spring, I'm still using TCw3, but other than fuelly not tracking it as this year looks like a much sharper drop off due to switching to mandatory e10 and winter blend at same time
I'm also going to stop using the TC-W3 after my quart is gone. If I notice a big drop in MPGs after stopping, I may start using it again. It's too difficult to tell if it was making a difference or not with the colder weather and winter blend fuel.