philip200qt

It sat in the mailbox for a couple hours at 30 degrees and I tried to pour it in the car, no go too thick.

Makes me wonder how it's going to affect the oil system on cold start.

Guess they say it'll be fine but...

Q: Using Auto-Rx in Frigid Cold Conditions
A: Auto-Rx is a highly concentrated combination of ester based cleaning components. In its concentrated form Auto-Rx is not flow able from its container below 32 degrees F. However, once dispersed into your host motor oil, it has little, to no effect on the pour point of the host oil. In cold weather conditions, follow these instructions. Dispense hot tap water into a bowl or container that will have adequate capacity to submerse the Auto-Rx container, up to the bottle neck. Insert the bottle so that the neck is above the high water mark. Allow the bottle to stand in the warm water for 2 minutes. If the bottle of Auto-Rx has been subject to below freezing temperatures, you should repeat this process twice. Refilling the hot water container and re-submersing the Auto-Rx. In the mean time warm the motor to operating temperature. With a warm motor and Auto-Rx warmed to at least room temperature, you are ready to proceed with your Auto-Rx application.

Tgr_Clw

j/k

philip200qt

I had to throw it out after I tried to dry my GF's cat in it.

Audi Junkie

A lot stays behind in the bottle even when it's warm. Rinse it out with some motor oil.

philip200qt

Nah, it warms up quick in hot water.