The Petroleum Quality Institute of America (PQIA) has recently issued a number of consumer warnings regarding low-cost lubricants on the market that could damage engines and transmissions. PQIA issued an alert in January for Super XXX and Liberty Gold Plus SMO motor oils; an alert in December for Super Star, Royal Star, City Star and Royal lubricants; and an alert in November for City Star and Everclear automatic transmission fluids. Among the problems cited with the lubricants are very low viscosities, lack of additives and high silicon levels.
