Whenever I get my engine back from dyno on a new build the Barrel Valve (mfi) will be slightly stiff to move after it sits for several days. I believe this is because they do not use top lube. I do not have this problem using Klotz Uplon even with the engine not running for one month.

quote:

Originally posted by wideopen231:
used some yellow additive the other day.Man it sounds and smells different.LOL Not sure about lubricating anything but man the sound rocks.

peeing in your tank.

I've always run lube with the carb/electric pump set up. There's just too many moving parts that can cause havoc if something gets "dry" from the alchy. But when the toilet was on the car, I would either run half as much lube, or none at all. I never saw any performance difference.

I run top lube so I don't feel the need to flush the fuel system after every outing. I put a quart of top lube in each drum, and run it like it's on gas. If there is a performance difference, it's really small.

I don't ever drain mine. I know I should. But even in the winter half the time I don't drain. Carbs seems to have more issues with this it seems.
Only my second season on efi though. Perhaps the injectors will be a different story.

I run a quart of Klotz in every drum, and I don't ever drain my system either.

I take the carb off and put it in the basement over the winter, but the rest of the system stays full. If the engine comes out I will fill the pump with trans fluid. Every spring the carb gets new floats and gaskets.

On the injected car, I don't take anything off or drain anything over the winter.