After emptying out quarts of Pennzoil Platinum, I noticed a trace of 'stuff' that had settled to the bottom of the bottle.
Just curious if the 'stuff' may be part of the add chemistry?
And if it is, would it be wise to shake the bottles up before pouring to put the 'stuff' back into suspension?
Or is it contaminants that are better left at the bottom of the bottle?
Just curious if the 'stuff' may be part of the add chemistry?
And if it is, would it be wise to shake the bottles up before pouring to put the 'stuff' back into suspension?
Or is it contaminants that are better left at the bottom of the bottle?