When I googled White Lithium spray, I found a WD-40 White Lithium product. Standard WD-40 is petroleum based and cold damage the drain valve seals if they are rubber-based.
Unless I had clear evidence that the WD-40 White Lithium is not petroleum based, or that the drain valve seals are not rubber-based, but are made of something like Delrin or Teflon, I wouldn't use the product.
On the other hand, Silicone works and is safe.
Gordon Sick, Calgary
2015 Berkshire 34QS
2005 Acura EL (aka Honda Civic)