Originally Posted By: Tomcat_80
Hello folks and how many of you folks here use either the QSGB and QSUD and like or dislike it? I have been using the QSGB 5W20 in a friends car for oil changes. No complaints from him. My father will NEVER use it or PYB for some reason, as he uses Valvoline. Anyways, I did some looking and cant believe the "stories and old wives tales" bout it causing sludge etc. Thanks in advance for the replies guys.
The Pennsylvania brand oils used to use paraffinic Pennsylvania crude as its base, which was a very good oil for hot weather, but tended to get waxy or sludgy when exposed to cold and water. Indeed the whole concept of a conventional oil Viscosity Index exceeding 100 is based on the superior hot qualities of QS and Pennzoil.
It's been more than 2 decades since either brand has used Pennsylvania crude, but some folks haven't caught on yet.
Hello folks and how many of you folks here use either the QSGB and QSUD and like or dislike it? I have been using the QSGB 5W20 in a friends car for oil changes. No complaints from him. My father will NEVER use it or PYB for some reason, as he uses Valvoline. Anyways, I did some looking and cant believe the "stories and old wives tales" bout it causing sludge etc. Thanks in advance for the replies guys.
The Pennsylvania brand oils used to use paraffinic Pennsylvania crude as its base, which was a very good oil for hot weather, but tended to get waxy or sludgy when exposed to cold and water. Indeed the whole concept of a conventional oil Viscosity Index exceeding 100 is based on the superior hot qualities of QS and Pennzoil.
It's been more than 2 decades since either brand has used Pennsylvania crude, but some folks haven't caught on yet.