Originally Posted By: tpitcher
Sorry I ever brought this up.
I know VERY well, what gas we have, what E10 is all about and that the engines will run just fine & make it through the cold a-ok with no additive at all!!!!!!!!!!!
No need to be crabby about it
I think that none and the discussions about fuel being fine without are ESPECIALLY relevant when -20 or whatever temperature you are going to see.
I run a rotation, MMO, TCW3, PI, FP60, SI-1, ETC. No big deal, just have some of each and I pick one of the shelf. Some are easier to take on a longer trip because of low treat rate, etc. Well, I had a bottle of TCW-3 in my trunk, and went to get gas the other day. The car had been out and it was well below freezing. This was synthetic TCW-3, mind you, it poured extremely slowly, wouldn't flow down the filler tube properly, and in the end made a big mess on the fuel filler end and on the side of my car.
Combine the fact that chances are that adds are likely not as volatile as fuel, it means more time fiddling on your car when fueling up, and that engines will run fine without them, and I lean towards the concept that when it is ridiculously cold, unless Im going on a long trip where the car will be hot more than not, Ill stay away from using adds when it is really cold, and just keep a full tank. Keeps things convenient, less time in the cold fiddling with adds, and I know that I keep a good enough regimen that it isnt really a big deal.
My 2c.